CASCACascade Atlas

Evidence dossier

CVE-2016-6366

Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security…

Exploited in the wild (CISA KEV since May 24, 2022). NVD reports CVSS 3.1 8.8. EPSS estimates 87.6% exploit likelihood as of Aug 27, 2026.

84.9–86.0Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.

State
PUBLISHED
Published
Aug 18, 2016
Updated
Jan 12, 2026
Evidence coverage
98%

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
    cisco

    Record text: Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.

    Inspect raw assertion
    Field
    container
    Value
    Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.
    Original evidence ↗
  3. 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 ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 87.57% probability · 99.74th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.875650000000; percentile 0.997450000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date May 24, 2022 · first observed Jul 19, 2026

Exploit likelihood87.56%

FIRST EPSS · score date Aug 27, 2026 · 99.7th percentile · first observed Aug 27, 2026

SeverityCVSS 8.8

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 ↗
ciscoOriginal assertion
Record text

Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.

Inspect raw assertion
Field
container
Value
Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on ASA 5500, ASA 5500-X, ASA Services Module, ASA 1000V, ASAv, Firepower 9300 ASA Security Module, PIX, and FWSM devices allows remote authenticated users to execute arbitrary code via crafted IPv4 SNMP packets, aka Bug ID CSCva92151 or EXTRABACON.
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 ↗
CISA KEVOriginal assertion
Exploitation cataloged

Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

87.57% probability · 99.74th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.875650000000; percentile 0.997450000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
52Underlying assertions
45Canonical products
10Target assertions
42Constraint assertions

Grouped from 5 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

46 scope groups

cisco · source assertedn/an/aDirect source scope
Affected: n/a
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
NVD CPE · HARDWAREcisco7604Environmental constraint · 1 assertions
Version not applicableCanonical identity product-6c4884021549c5ac441368e0b2bdb43af3793c08c4514b49f0a6965c9a72eedfLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:7604:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    65973b50-2aa1-4b83-925a-8db2d4720adb
NVD CPE · HARDWAREcisco7606-sEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-ddd3e5e6990b71ea4c72c6d0357c2bef7d281e3a3790e3c28fb04a891bccfdc1Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:7606-s:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    25dd80a8-f664-4c30-a89f-c2299ccacb7e
NVD CPE · HARDWAREcisco7609-sEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-4a6932191f6af53c7215f8b0707b6ce32d7a4b2f8befb33a2917e7a8db3025a3Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:7609-s:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 2
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    385dba44-e84b-4752-8e8e-170ef13784d7
NVD CPE · HARDWAREcisco7613-sEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-2af7be24be74ec325de1b4511c75692cdd09c6d443606f66fb2e24817fdf7a4bLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:7613-s:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 3
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    a1e30f72-0218-496d-bfad-ced0aac5e58e
NVD CPE · OPERATING SYSTEMciscoadaptive_security_appliance_softwareVulnerable target · 7 assertions
Any version (unconstrained) (>= 7.2.1, < 9.0.4.40); Any version (unconstrained) (>= 9.1.1, < 9.1.7\(9\)); Any version (unconstrained) (>= 9.2.0, < 9.2.4\(14\)); Any version (unconstrained) (>= 9.3.0, < 9.3.3\(10\)); Any version (unconstrained) (>= 9.4.0.115, < 9.4.3\(8\)); Any version (unconstrained) (>= 9.5.0, <= 9.5\(3\)); Any version (unconstrained) (>= 9.6.0, < 9.6.1\(11\))Canonical identity product-4f9b01b0d2b49f62a97941ed22de23d9f3ec08f598a5617c413c154933c87a27Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 2
    Logic
    OR
    Version bounds
    from including 9.2.0; through excluding 9.2.4\(14\)
    Match ID
    db701e10-57d0-4c9a-8fb7-5a27a4c9d9f0
  2. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 1
    Logic
    OR
    Version bounds
    from including 9.1.1; through excluding 9.1.7\(9\)
    Match ID
    1d7de2bb-3abb-49fb-8798-37a356839c6b
  3. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 4
    Logic
    OR
    Version bounds
    from including 9.4.0.115; through excluding 9.4.3\(8\)
    Match ID
    59eb3383-005b-443e-a65a-798497d3e750
  4. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 5
    Logic
    OR
    Version bounds
    from including 9.5.0; through including 9.5\(3\)
    Match ID
    1c69fa5a-ec00-4baf-8ea4-aee473dd299b
  5. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 6
    Logic
    OR
    Version bounds
    from including 9.6.0; through excluding 9.6.1\(11\)
    Match ID
    88b1c470-34be-4d69-9df1-0c30866b9498
  6. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 3
    Logic
    OR
    Version bounds
    from including 9.3.0; through excluding 9.3.3\(10\)
    Match ID
    186b85ff-97e6-45c2-abd0-dbb9c6981eea
  7. cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    from including 7.2.1; through excluding 9.0.4.40
    Match ID
    f95fc8fc-52b2-4a7d-a0cb-2ddb2be48f8b
NVD CPE · OPERATING SYSTEMciscoasa_1000v_cloud_firewall_softwareVulnerable target · 2 assertions
Version 8.7.1; Version 8.7.1.1Canonical identity product-54a4e9c60e08256170b10c6ffec46de72b7afa00f4ad81d2045f8754922b7692Linked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:o:cisco:asa_1000v_cloud_firewall_software:8.7.1.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 1
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    84bbcf6d-5529-4d7f-a32d-4c1c03139819
  2. cpe:2.3:o:cisco:asa_1000v_cloud_firewall_software:8.7.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d04d15e5-eb98-4a87-aad5-bc7e553e4ea1
NVD CPE · HARDWAREciscoasa_5500Environmental constraint · 1 assertions
Version not applicableCanonical identity product-1de2111b23f5c14a08b1b38728cc8947ee63551f29168bc5aabaf4e5a9521ce7Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5500:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 4
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    7018906a-acdf-4d7b-b816-ed9c235bf04e
NVD CPE · HARDWAREciscoasa_5500_csc-ssmEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-c33d41540517d2602dd0cd8d6db6aae0b2dbf7d9121b6124906f7d642b43b891Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5500_csc-ssm:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 6
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    dd44dfa7-9d3e-4158-9551-a698344f9022
NVD CPE · HARDWAREciscoasa_5500-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-e110a451c8704da693b42f1c6f88c5718303ac04f9dc422e17903f4d5588d35fLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5500-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 5
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e10d97eb-51c4-4904-abba-5fcdc9b6d062
NVD CPE · HARDWAREciscoasa_5505Environmental constraint · 1 assertions
Version not applicableCanonical identity product-fd08f91d4249eaa754571e5ef260de6d6ecff601db7e96e47670a7a7487e01fdLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 7
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    8e6a8bb7-2000-4ca2-9dd7-89573ce4c73a
NVD CPE · HARDWAREciscoasa_5506h-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-8901138d933477193be5bb261da46ec932b6416f35338a22a71b87b18620e3b4Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5506h-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 9
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    30ac6907-3091-409f-967d-64a82a0c5a8c
NVD CPE · HARDWAREciscoasa_5506w-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-e9eae383dde3b512e8147f9aae6c277e505534ac37164a616e09135a3a04e9daLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5506w-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 10
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    d11af728-8eb0-45eb-a7dd-f2d52b3bb7b8
NVD CPE · HARDWAREciscoasa_5506-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-4ef5ce1350a2e86116fa0a645d7943610bbc398bdbd01f642ddb1ccd7ba32fd3Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5506-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 8
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    763b801d-ca1e-4c56-8b06-3373ea307c7e
NVD CPE · HARDWAREciscoasa_5508-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-77cbfe92f1b409f6502fd6a008014b1cf54e56a2f61a5b851f8b3b5381a817d5Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5508-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 11
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    92ae506a-e710-465b-b795-470fde0e0eca
NVD CPE · HARDWAREciscoasa_5510Environmental constraint · 1 assertions
Version not applicableCanonical identity product-8ad3feeb7306c41fceca813dda587eb3143d5cfaa2065dc66867f5fa839a6b3eLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5510:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 12
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    b091b9ba-d4ca-435b-8d66-602b45f0e0bd
NVD CPE · HARDWAREciscoasa_5512-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-3faa06d4b0afd17768b37fde89a5bda60cc00b0b7a357ba40dfbf9d6f03c64c6Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 13
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    08f0f160-dad2-48d4-b7b2-4818b2526f35
NVD CPE · HARDWAREciscoasa_5515-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-bccd85dd976bb84be1a838cfb06eb16819a216dcfecafa255b8b9383f616dce0Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 14
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    977d597b-f6de-4438-ab02-06be64d71ebe
NVD CPE · HARDWAREciscoasa_5516-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-ba365e1084fca218fc5cd9c76ec23d3aee298e62a898f4234e369806a7df7f27Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5516-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 15
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1e07af10-ffb2-4ac7-bbe7-199c3efed81f
NVD CPE · HARDWAREciscoasa_5520Environmental constraint · 1 assertions
Version not applicableCanonical identity product-e04ae50f943e12a8123f37e8da1d56321b9e220f64841414d001903f9dee1d93Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5520:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 16
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    2b387f62-6341-434d-903f-9b72e7f84ecb
NVD CPE · HARDWAREciscoasa_5525-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-62a4e88969b6778c634f3a91128a163bbaedd268cd870501d50876e1b0b32af6Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 17
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    eb71eb29-0115-4307-a9f7-262394fd9fb0
NVD CPE · HARDWAREciscoasa_5540Environmental constraint · 1 assertions
Version not applicableCanonical identity product-86cfe993dd5172a7ecc30a3bca9b6a6aa8b29c63c1b0b9bc8acaf66b1b199862Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5540:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 18
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    17c5a524-e1d9-480f-b655-0680aa5bf720
NVD CPE · HARDWAREciscoasa_5545-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-d51f284d2c6c44d9b59aca9d7d4c7f00a4ce5d536ad38e2917433fe7cce03aa9Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 19
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    57179f60-e330-4ff0-9664-b1e4637ff210
NVD CPE · HARDWAREciscoasa_5550Environmental constraint · 1 assertions
Version not applicableCanonical identity product-f8aa3b82b722e9e73e0848e1cebee204e1bc1c8fda30800bd226c6f15265fb6fLinked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5550:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 20
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    e6287d95-f564-44b7-a0f9-91396d7c2c4e
NVD CPE · HARDWAREciscoasa_5555-xEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-f92e331528b286270fbe594b6b206fdf57831d6f725b2b957080b750f25ed9a3Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 21
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    5535c936-391b-4619-aa03-b35265fc15d7

Affected-product evidence

Accepted scope and product mapping

3 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-2a90db3c1dbee9884a06a9d4bf0dc585ac5f8719a6ecdaca10d4111a219db031

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
e75ce50e-b5ff-4d8f-acff-bd836828670e
Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-4f9b01b0d2b49f62a97941ed22de23d9f3ec08f598a5617c413c154933c87a27

Source class
Nvd cpe vulnerable target
Assertions
7
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
011215ba-8275-4d10-af42-c3719863cf760254e465-de57-45f6-9a4d-079ba439b60b23425441-54c4-417a-a8ec-ca20dbe6c4b9554aaa31-7df3-4028-a27b-6a8d62d4eb1e726d4c6c-f7c9-403d-9f95-5b575001099fa956603e-b393-43ca-9c60-8bbe6e16a072e5824fff-c14b-4ca3-94eb-a4d3ff81ca12
Mapping establishedEvidence supported

vendor-0774b265c0e837e737aaf99ed0f2450c048e61f34267ca59d8623878b839334e · product-54a4e9c60e08256170b10c6ffec46de72b7afa00f4ad81d2045f8754922b7692

Source class
Nvd cpe vulnerable target
Assertions
2
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
070dddb4-0a2c-41fd-893e-62b43e65f8f5c66c378f-ed18-4a9f-b93c-7ecae8f6a278
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
002a1fbc-8500-481b-b5e4-ba398b92449b

Assessments

CVSS by origin

8.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:M/Au:S/C:C/I:C/A:C
8.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

8.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
8.8
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.