CASCACascade Atlas

Evidence dossier

CVE-2026-7473

Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

Exploited in the wild (CISA KEV since Jun 9, 2026). Arista reports CVSS 4.0 6.9. EPSS estimates 1.1% exploit likelihood as of Aug 27, 2026.

62.0–63.5Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

On affected platforms running Arista EOS where a tunnel decapsulation configuration—such as VXLAN (Virtual Extensible LAN), decap-groups, or a GRE (Generic Routing Encapsulation) tunnel interface—is present, the switch will incorrectly decapsulate and forward other unexpected tunneled packet with a destination IP matching its configured decapsulation IP. This occurs because the switch does not verify the tunnel protocol type, potentially leading to the unexpected processing of non-configured tunnel traffic. This issue has been reported as being exploited in the wild.

State
PUBLISHED
Published
Jun 5, 2026
Updated
Jun 10, 2026
Evidence coverage
92%

Evidence chronology

What was known when

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

    Record text: Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

    Inspect raw assertion
    Field
    container
    Value
    Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass
    Original evidence ↗
  2. 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 ↗
  3. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 1.11% probability · 63.47th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.011080000000; percentile 0.634700000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Jun 9, 2026 · first observed Jul 19, 2026

Exploit likelihood1.11%

FIRST EPSS · score date Aug 27, 2026 · 63.5th percentile · first observed Aug 27, 2026

SeverityCVSS 6.9

Arista · CVSS 4.0 · 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

AristaOriginal assertion
Record text

Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass

Inspect raw assertion
Field
container
Value
Arista EOS Unexpected Tunnel Protocol Decapsulation and Forwarding Bypass
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
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 ↗
CISA KEVOriginal assertion
Exploitation cataloged

Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Arista Extensible Operating System Incomplete Comparison with Missing Factors Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

1.11% probability · 63.47th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.011080000000; percentile 0.634700000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
102Underlying assertions
102Canonical products
1Target assertions
101Constraint assertions

Grouped from 2 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

103 scope groups

Arista · source assertedArista NetworksEOSDirect source scope
Affected: 4.36.0 (custom comparison)Affected: 4.35.0 through 4.35 (custom comparison)Affected: 4.34.0 through 4.34 (custom comparison)Affected: 4.33.0 through 4.33 (custom comparison)Affected: 4.32.0 through 4.32 (custom comparison)Affected: 4.31.0 through 4.31 (custom comparison)Affected: * through 4.30 (custom comparison)
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "4.36.0", "versionType": "custom"}, {"status": "affected", "version": "4.35.0", "versionType": "custom", "lessThanOrEqual": "4.35"}, {"status": "affected", "version": "4.34.0", "versionType": "custom", "lessThanOrEqual": "4.34"}, {"status": "affected", "version": "4.33.0", "versionType": "custom", "lessThanOrEqual": "4.33"}, {"status": "affected", "version": "4.32.0", "versionType": "custom", "lessThanOrEqual": "4.32"}, {"status": "affected", "version": "4.31.0", "versionType": "custom", "lessThanOrEqual": "4.31"}, {"status": "affected", "version": "*", "versionType": "custom", "lessThanOrEqual": "4.30"}]
NVD CPE · HARDWAREarista7020sr-24c2Environmental constraint · 1 assertions
Version not applicableCanonical identity product-30406eec637a8ed821401c11fefb178538b84aaca3af0546149a190857b3d887Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7020sr-24c2:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7781cb15-3452-47d9-a961-8b09f2e9aec1
NVD CPE · HARDWAREarista7020sr-32c2Environmental constraint · 1 assertions
Version not applicableCanonical identity product-b14909d599d0db549ca189a22e83b605ea6a282108592b830b79c51a9cb7d306Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7020sr-32c2:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    09a31fb8-512e-43ef-8f87-e02e35f5251e
NVD CPE · HARDWAREarista7020srg-24c2Environmental constraint · 1 assertions
Version not applicableCanonical identity product-ddf105e01294b2cb4168c1b00e01f396de0b5c91ea93caee28e4fbaacff58aacLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7020srg-24c2:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    282ff2e7-cddc-4f32-89c9-4c79b7518e0e
NVD CPE · HARDWAREarista7020tr-48Environmental constraint · 1 assertions
Version not applicableCanonical identity product-ebcdf17b688cbe30fd9859a52973402f8a610b125948912169ed4225dfb7291dLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7020tr-48:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2cbff922-28d7-42d6-8796-91ad9a178d28
NVD CPE · HARDWAREarista7020tra-48Environmental constraint · 1 assertions
Version not applicableCanonical identity product-fef246f6f27b01bc0027401e724758f90b39b8c243ac3ae174c6f8c53d7582adLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7020tra-48:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    561b4042-dfd3-4bc0-9c5f-74799a7e92c5
NVD CPE · HARDWAREarista7280cr2-60Environmental constraint · 1 assertions
Version not applicableCanonical identity product-a429b19482a57900ec6658c0c334d27bfddcc6229eed2d7b9375a193e4aa8712Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2-60:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    cc31ef21-07c9-485e-8364-9bd7c65af428
NVD CPE · HARDWAREarista7280cr2a-30Environmental constraint · 1 assertions
Version not applicableCanonical identity product-ff50b06ffe6fb35fc260c18047bc4bc9da71a87e41e064208405fc8bf256f8c1Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2a-30:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    c8355e97-0cbe-4e3e-ae22-3c859fa284b6
NVD CPE · HARDWAREarista7280cr2a-60Environmental constraint · 1 assertions
Version not applicableCanonical identity product-1e3f5ca481660656969cc2ec0a31a2a3c7b8008e8de76dad75d6f4c7e21eec0eLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2a-60:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 8
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a47e990a-1751-4a5f-8a0a-8b9c8ad3662d
NVD CPE · HARDWAREarista7280cr2k-30Environmental constraint · 1 assertions
Version not applicableCanonical identity product-038ff98ff64578c364f6e3f1aaba7c8b9263ad4e6fe0c16c9ba3fdfda76aa96fLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2k-30:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 9
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    376d7f0c-57e5-416f-a376-698a1a90f1cd
NVD CPE · HARDWAREarista7280cr2k-60Environmental constraint · 1 assertions
Version not applicableCanonical identity product-d01e0edab87d9a22f94468e08144bd0c5d3a9f767d8c360ad3269b78eaeb4522Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2k-60:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 10
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5f569286-c19f-48cb-ab24-89c4a1eb6f81
NVD CPE · HARDWAREarista7280cr2m-30Environmental constraint · 1 assertions
Version not applicableCanonical identity product-b132b0c363abdc4875afdc31c7f4a0d83b69273530ac3bff4db01fb322ab7e52Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr2m-30:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 11
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e03ae8c4-f3f2-4c2c-bfc5-3fa31823ec8f
NVD CPE · HARDWAREarista7280cr3-32d4Environmental constraint · 1 assertions
Version not applicableCanonical identity product-887e8eeab78c2a8bdfac221e92eddf07c373b25ad831dfecdf4810ff05ab962dLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3-32d4:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 12
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7fec18b3-7980-4ebf-8e15-f8e92dadd062
NVD CPE · HARDWAREarista7280cr3-32p4Environmental constraint · 1 assertions
Version not applicableCanonical identity product-55f6f0e2a5339195ee4a1ee2ae0ae1a37749b49272015e98158aaae4e3d2af73Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3-32p4:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 13
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    87e85f7c-f33b-49c1-a526-acc1bef3b65c
NVD CPE · HARDWAREarista7280cr3-36sEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-f756b51b15d405ae8a1466d554fff4b5f7c4dc4adaab6ca18a61c11731fc2eb7Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3-36s:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 14
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a3b9cb1b-730e-45c9-a0b1-3c2f4a72a159
NVD CPE · HARDWAREarista7280cr3-96Environmental constraint · 1 assertions
Version not applicableCanonical identity product-a298596ecaaa3b754c8a401b3154ed4875c8b98fcaa69ba7afb0513a0d5425b7Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3-96:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 15
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2e54f451-ca87-4f32-a088-ae18123ce07a
NVD CPE · HARDWAREarista7280cr3a-24d12Environmental constraint · 1 assertions
Version not applicableCanonical identity product-d163c7b13461c17b8bcc21e2d7e4648fe62ed82d3b0cfdc599f89bad78d27779Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3a-24d12:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 16
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    43b967ed-2212-4558-a9ac-aca94c94fd39
NVD CPE · HARDWAREarista7280cr3a-48d6Environmental constraint · 1 assertions
Version not applicableCanonical identity product-3615fb827d938ee01b7015dfcf59cbde9d020ebc613a6f13b860da0fbe908ccaLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3a-48d6:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 17
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    cd7877c6-9de4-4952-94d2-3a456d02cf1a
NVD CPE · HARDWAREarista7280cr3a-72Environmental constraint · 1 assertions
Version not applicableCanonical identity product-bb6698998634ffbcae27f1af00f9e815d6bf77411aa6b743705a3f96befab61eLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3a-72:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 18
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2fd635fb-5ea8-4b02-894c-4c016090aab3
NVD CPE · HARDWAREarista7280cr3ak-24d12Environmental constraint · 1 assertions
Version not applicableCanonical identity product-4b40819e55414411c4c64607ae1b545e466133645082fee7baf69949abea18f0Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3ak-24d12:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 19
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f567fcb9-80b3-4580-9181-6f2ffeddec12
NVD CPE · HARDWAREarista7280cr3ak-48d6Environmental constraint · 1 assertions
Version not applicableCanonical identity product-f782043fbda09f6fac6dd40c773a7f720f16ac62f68e252d0e63d520a10135e1Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3ak-48d6:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 20
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    6d184ba0-02cb-4323-9d44-b02ad32067af
NVD CPE · HARDWAREarista7280cr3ak-72Environmental constraint · 1 assertions
Version not applicableCanonical identity product-c595d2d5b5076e9a4c3f88cc8308ad7933a429279a35e47cb3b24e1dfbad6bd6Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3ak-72:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 21
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    f4627ca2-6b54-4588-9f4b-7f19dd0e0c2e
NVD CPE · HARDWAREarista7280cr3am-24d12Environmental constraint · 1 assertions
Version not applicableCanonical identity product-dc8cb0c29e5408bd7c80114102cfdb9c255e7695ae321c43486895acd3b48f73Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3am-24d12:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 22
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    537aac04-2ca2-46e2-aae0-381615604b38
NVD CPE · HARDWAREarista7280cr3am-48d6Environmental constraint · 1 assertions
Version not applicableCanonical identity product-780387ee7936589d2c3c40ea4614e36586b47aecbfbe2500e7bb3101e8a15cd9Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3am-48d6:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 23
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b08d43de-ad41-41de-89d8-db0ea9b10637
NVD CPE · HARDWAREarista7280cr3am-72Environmental constraint · 1 assertions
Version not applicableCanonical identity product-abaa608105268b219c778adecb68ef9fd09c8fe312fc7334391afec9c71d83beLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:arista:7280cr3am-72:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 24
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5f879845-50b7-4202-8831-52cb903d2c8c

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-7e10c48e52fcf2817914dceb8275ea9f4e9fa821be3da90f14277e3dfb509042 · product-4a9e5f8d20063f77280080e593816b0a266f41ffdabcb0171c11eeb4f7f06280

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
3214a35e-3c14-4422-b992-aa54e215bdb9
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
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
6929ce34-1ccc-4260-beb2-7ac2b7cbf677

Assessments

CVSS by origin

6.9
psirt@arista.comCVSS 4.0 · role Secondary · priority eligiblevalid_matchCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
5.8
psirt@arista.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
6.9
AristaCVSS 4.0 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
5.8
AristaCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Direct CVE/CNA normalized decisions

6.9Priority eligible

Arista

CVSS 4.0 · Primary · Original assertion · rank 1

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N
Validation
Valid match
Recomputed
6.9
Decision reason
Evidence supported
Policy
casca-direct-cvss-eligibility-v1
5.8Priority eligible

Arista

CVSS 3.1 · Primary · Original assertion · rank 1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Validation
Valid match
Recomputed
5.8
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.