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CVE-2026-20103

A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to exhaust device memory resulting in a denial of service (DoS) condition to new Remote Access SSL VPN connections. This does not affect the management interface, though it may become temporarily unresponsive. This vulnerability is due to trusting user input without vali
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2cd0fc6a2bd17ad901866370440b6d0151df7a50aaf4fe961525e4f93c41c61f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.4.0.16"},{"status":"affected","version":"6.4.0.17"},{"status":"affected","version":"6.4.0.18"},{"status":"affected","version":"7.0.4"},{"status":"affected","version":"7.0.5"},{"status":"affected","version":"7.0.6"},{"status":"affected","version":"7.0.6.1"},{"status":"affected","version":"7.0.6.2"},{"status":"affected","version":"7.0.6.3"},{"status":"affected","version":"7.0.7"},{"status":"affected","version":"7.0.8"},{"status":"affected","version":"7.0.8.1"},{"status"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/affected/1

{"product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.4.48"},{"status":"affected","version":"9.12.4.50"},{"status":"affected","version":"9.12.4.52"},{"status":"affected","version":"9.12.4.54"},{"status":"affected","version":"9.12.4.55"},{"status":"affected","version":"9.12.4.56"},{"status":"affected","version":"9.12.4.58"},{"status":"affected","version":"9.12.4.62"},{"status":"affected","version":"9.12.4.65"},{"status":"affected","version":"9.12.4.67"},{"status":"affected","version":"9.16.3.15"},{"status"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.4.0.16"},{"status":"affected","version":"6.4.0.17"},{"status":"affected","version":"6.4.0.18"},{"status":"affected","version":"7.0.4"},{"status":"affected","version":"7.0.5"},{"status":"affected","version":"7.0.6"},{"status":"affected","version":"7.0.6.1"},{"status":"affected","version":"7.0.6.2"},{"status":"affected","version":"7.0.6.3"},{"status":"affected","version":"7.0.7"},{"status":"affected","version":"7.0.8"},{"status":"affected","version":"7.0.8.1"},{"status"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/affected/1
{"product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.4.48"},{"status":"affected","version":"9.12.4.50"},{"status":"affected","version":"9.12.4.52"},{"status":"affected","version":"9.12.4.54"},{"status":"affected","version":"9.12.4.55"},{"status":"affected","version":"9.12.4.56"},{"status":"affected","version":"9.12.4.58"},{"status":"affected","version":"9.12.4.62"},{"status":"affected","version":"9.12.4.65"},{"status":"affected","version":"9.12.4.67"},{"status":"affected","version":"9.16.3.15"},{"status"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.6,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-asaftd-vpn-m9sx6MbC","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-vpn-m9sx6MbC"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b007260c191712209baf439f35b2ca6a0b6c84e2eed4e1c240440b33564c0caf · sha256:9cb62d9708f8672c… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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