CASCACascade Atlas

Evidence dossier

CVE-2022-30525

A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21…

Exploited in the wild (CISA KEV since May 16, 2022). NVD reports CVSS 3.1 9.8. EPSS estimates 99.9% exploit likelihood as of Aug 18, 2026.

91.8–95.3Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

State
PUBLISHED
Published
May 12, 2022
Updated
Oct 21, 2025
Evidence coverage
95%

Evidence chronology

What was known when

Download this view's receipt →
  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    Zyxel

    Record text: A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

    Inspect raw assertion
    Field
    container
    Value
    A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Zyxel Multiple Firewalls OS Command Injection Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Zyxel Multiple Firewalls OS Command Injection Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 99.94% probability · 99.97th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.999440000000; percentile 0.999730000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date May 16, 2022 · first observed Jul 19, 2026

Exploit likelihood99.94%

FIRST EPSS · score date Aug 18, 2026 · 100th percentile · first observed Aug 18, 2026

SeverityCVSS 9.8

NVD · CVSS 3.1 · first observed Jul 19, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1
Exploitation statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 2026
Resolution
None
Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision
casca-factor-d-obligations-v1
Cutoff
Aug 27, 2026
Resolution
Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment
Record text

CISA ADP Vulnrichment

Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
ZyxelOriginal assertion
Record text

A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.

Inspect raw assertion
Field
container
Value
A OS command injection vulnerability in the CGI program of Zyxel USG FLEX 100(W) firmware versions 5.00 through 5.21 Patch 1, USG FLEX 200 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 500 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 700 firmware versions 5.00 through 5.21 Patch 1, USG FLEX 50(W) firmware versions 5.10 through 5.21 Patch 1, USG20(W)-VPN firmware versions 5.10 through 5.21 Patch 1, ATP series firmware versions 5.10 through 5.21 Patch 1, VPN series firmware versions 4.60 through 5.21 Patch 1, which could allow an attacker to modify specific files and then execute some OS commands on a vulnerable device.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Zyxel Multiple Firewalls OS Command Injection Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Zyxel Multiple Firewalls OS Command Injection Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

99.94% probability · 99.97th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.999440000000; percentile 0.999730000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
32Underlying assertions
32Canonical products
16Target assertions
16Constraint assertions

Grouped from 32 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries
  • Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
  • Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

40 scope groups

Zyxel · source assertedZyxelATP series firmwareDirect source scope
Affected: 5.10 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.10 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG 20(W)-VPN firmwareDirect source scope
Affected: 5.10 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.10 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG FLEX 100(W) firmwareDirect source scope
Affected: 5.00 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.00 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG FLEX 200 firmwareDirect source scope
Affected: 5.00 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.00 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG FLEX 500 firmwareDirect source scope
Affected: 5.00 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.00 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG FLEX 50(W) firmwareDirect source scope
Affected: 5.10 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.10 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelUSG FLEX 700 firmwareDirect source scope
Affected: 5.00 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "5.00 through 5.21 Patch 1"}]
Zyxel · source assertedZyxelVPN series firmwareDirect source scope
Affected: 4.60 through 5.21 Patch 1
Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion[{"status": "affected", "version": "4.60 through 5.21 Patch 1"}]
NVD CPE · HARDWAREzyxelatp100Environmental constraint · 1 assertions
Version not applicableCanonical identity product-1200899350c6986d5c964f597f369618d1abb63616766a4ba3ec511b2ebc27e6Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp100:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    8 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7f7654a1-3806-41c7-82d4-46b0cd7ee53b
NVD CPE · OPERATING SYSTEMzyxelatp100_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-a61d6943c1bad48e17a6899eb15990b4a194af3c4c7456d58636c745ce6c0123Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp100_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    8 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    73e839ca-ab89-4a58-9614-f7e7905bdbbc
NVD CPE · HARDWAREzyxelatp100wEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-e89e0034d5de943870101b99bf70729bdf104ab7b27b822fa2c5ad4c217de46cLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp100w:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    9 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    47398fd0-6c5e-4625-9efd-de08c9ab7db2
NVD CPE · OPERATING SYSTEMzyxelatp100w_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-6e8453083842a704d3eef10ca166fe4982207762b43dbd869f4d6d6da51c6519Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp100w_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    9 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    4c5e9252-2297-4371-9a3c-dc94402b5eb8
NVD CPE · HARDWAREzyxelatp200Environmental constraint · 1 assertions
Version not applicableCanonical identity product-204c039ba605ff99a732d4aeb892002d51199a5a7289e8fc9a6195251cd09d02Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp200:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    10 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d68a36ff-8caf-401c-9f18-94f3a2405cf4
NVD CPE · OPERATING SYSTEMzyxelatp200_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-d262d95a9d2b47c5c7875f791f3c6fa9d5d2b48a0a40750bed16cd94cd692f89Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp200_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    10 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    c866b1be-19ec-43ae-bba4-3844a0a4feb2
NVD CPE · HARDWAREzyxelatp500Environmental constraint · 1 assertions
Version not applicableCanonical identity product-2aadc23472d0134ca1a46a96d237076a2f79c52ee591e309a631af2c09fe5858Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp500:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    11 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2818e8ac-ffee-4df9-bf3f-c75166c0e851
NVD CPE · OPERATING SYSTEMzyxelatp500_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-51aff2d0b03d80e26b46d437c992b29e60a2d3fc16c8471fd199c9d23383d177Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp500_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    11 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    3518ddb4-c6b2-4047-8d07-67a5cfa09dd6
NVD CPE · HARDWAREzyxelatp700Environmental constraint · 1 assertions
Version not applicableCanonical identity product-cea0f4a3423fb565b7fc5420cfee82db0edf528bf9235d8292671f6e8ae64fe8Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp700:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    12 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    0b41f437-855b-4490-8011-df59887be6d5
NVD CPE · OPERATING SYSTEMzyxelatp700_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-e80ae947ef2fbf604a1685f7dbf5e9c3fecc4edde631c371210a3a8519233fb1Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp700_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    12 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    ca0953d6-ac1a-4c2c-90e8-217590852acd
NVD CPE · HARDWAREzyxelatp800Environmental constraint · 1 assertions
Version not applicableCanonical identity product-3d53771a3239415f970ae3ae39ad7aea35c319c755ea6e942a0f4add01901eb2Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:atp800:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    13 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    66b99746-0589-46e6-9cbd-f38619ad97dc
NVD CPE · OPERATING SYSTEMzyxelatp800_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-c0379851b411c8239197abf9661f20e966d7560c151b11c7647d2508bf2f7e92Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:atp800_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    13 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    ad8831d8-d40c-4a85-9f74-58067a241f73
NVD CPE · HARDWAREzyxelusg20w-vpnEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-45a9537bef047d23b797d54eb26ceb150a2cb6a736c838e3055dffc9045e620bLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:usg20w-vpn:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    15 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    06d2ad3a-9197-487d-a267-24de332cc66b
NVD CPE · OPERATING SYSTEMzyxelusg20w-vpn_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.10, < 5.30)Canonical identity product-f67c9e488f6bb2574b9c39312add734e1fcaac0e53a5009c72a5a35f62c50248Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:usg20w-vpn_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    15 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.10; through excluding 5.30
    Match ID
    c639f04a-8810-4445-be88-2e6ff1d9c3c5
NVD CPE · HARDWAREzyxelusg_flex_100wEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-e64f051566e72ee8abc4c7cf7c156e863ad218d5c276e00ed48e367f76fc3301Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:usg_flex_100w:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d74aba7e-aa78-4a13-a64e-c44021591b42
NVD CPE · OPERATING SYSTEMzyxelusg_flex_100w_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (>= 5.00, < 5.30)Canonical identity product-5abdfb839c49688aabb3222f4bc5147ec7b4516467e598cdf06c89143c252874Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:zyxel:usg_flex_100w_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 5.00; through excluding 5.30
    Match ID
    c07fafdd-18ed-4bde-9d35-bff93c2ff276
NVD CPE · HARDWAREzyxelusg_flex_200Environmental constraint · 1 assertions
Version not applicableCanonical identity product-186ec2e7e83ecc39c0cd4f4aab725cf56a83377b1b1f4e40d0fefce00e4a9d1cLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:zyxel:usg_flex_200:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f93b6a06-2951-46d2-a7e1-103d7318d612

Affected-product evidence

Accepted scope and product mapping

16 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-0b2bf582a5aa79942527606012ba4ef11a68ad9abca59a4abf071acaeb96106c

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
0521ac10-d550-4112-926a-9b3c05ac4dac
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-0c7537a3c4e962c61695d9a69c09c71c4706711aff73126318bc69c88e8d810d

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
d5227c42-77bc-4cec-a996-d9569ba0284b
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-326008e6d320d68bbeba0496f28a5df816c3b4b5fd083259f33968af444d8583

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
56371c7f-1603-48d8-b09c-f05dc348c2a1
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-51aff2d0b03d80e26b46d437c992b29e60a2d3fc16c8471fd199c9d23383d177

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
06bd0645-320a-4da4-ad16-c07d67796d47
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-5abdfb839c49688aabb3222f4bc5147ec7b4516467e598cdf06c89143c252874

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
686dcf72-365f-4e67-ae97-def8e01a7c26
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-6082442a6083cd87efca032eced3b7c869d191d5abe797ca758b24a14219ab98

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
54202dd2-dc59-4589-aa85-6a760e87958c
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-6e8453083842a704d3eef10ca166fe4982207762b43dbd869f4d6d6da51c6519

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
1579144f-6ede-4cf8-b3ea-0017b9254d3d
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-73d8643b6be148d5a452006e63a97198060a54c941b1f1e4638cc41687b261d6

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
f440e1bd-5801-48f0-aa6d-7235b39e99b4
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-936a8a7c943c7226136a60acef772ee4ce5ac143e5655c668b852f5b8d502342

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
8aa7777f-1929-41fb-b8f8-ce78b358fe70
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-a61d6943c1bad48e17a6899eb15990b4a194af3c4c7456d58636c745ce6c0123

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
03254485-b3ac-473f-b0e7-258f3372fd4d
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-c0379851b411c8239197abf9661f20e966d7560c151b11c7647d2508bf2f7e92

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
bd9f0571-7c3f-4558-be32-7f860805affe
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-d262d95a9d2b47c5c7875f791f3c6fa9d5d2b48a0a40750bed16cd94cd692f89

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
70203e9b-34d5-4e7d-80a8-e7ce7966ad2a
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-d781087797ffcbc50b6c52eb91f3e346a66c12189f2fe0f9f13d2c13ec28c3f6

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
3b028862-2c48-4754-a17c-33ff620ac7d9
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-e09b599c8ada399dff2b8ab79fd7bbc40401bd2afbe161b152324fc7a13c2c40

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
d371a3cf-2bdd-49d3-a44d-e3943157561c
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-e80ae947ef2fbf604a1685f7dbf5e9c3fecc4edde631c371210a3a8519233fb1

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
10015306-3f99-4764-9aca-1af7a0be493d
Mapping establishedEvidence supported

vendor-b18047daaf1c9692aefa2edb7182e0b8d93a7a346ff6d96ee9c363ca18b9f5cc · product-f67c9e488f6bb2574b9c39312add734e1fcaac0e53a5009c72a5a35f62c50248

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
f66884b6-ffe8-4c7b-b868-ea9f7987028a
Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class
Direct cve affected
Assertions
8
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
1842c244-a192-4f33-8966-3f1a0ecb19301f82e07a-3305-4749-95b7-cf33fc49f83433a5abb5-28db-45d8-8dcb-46972f15488d8e92222d-5336-4cd1-a1c5-3fdff9a66d29a5c8193c-93e2-416b-8afa-ee07e4cb9d8fc6b5d867-b0f3-446c-8b3d-a8bbca19076ad667958e-76db-4388-98dd-802267dfd6d6edbacbb8-ccd3-4adb-9d4c-0f5e1b01c620

Assessments

CVSS by origin

9.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8
security@zyxel.com.twCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
ZyxelCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

9.8Priority eligible

Zyxel

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
9.8
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

  • KEV membership is authoritative for the catalog, not proof of exposure in any environment.
  • EPSS is a dated model probability and not an individual-environment prediction.
  • Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
  • NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
  • Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
  • NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
  • OSV aggregation and OSV-converted NVD material are not independent corroboration.
  • Red Hat facts are vendor assertions for the exact supplied products.
  • Nonmembership and not-yet-observed states are not proof of safety.