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CVE-2026-20013

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may also impact the availability of services to devices elsewhere in the network. This vulnerability is due to memory exhaustion caused by not freeing memory during IKEv2 packet processing. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:3d05d072d54ccf90b0cb54c2e32a180e1d4c726d13991613b50760c333b0c18c
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"},{"status":"affected","version":"6.4.0.1"},{"status":"affected","version":"6.4.0.3"},{"status":"affected","version":"6.4.0.2"},{"status":"affected","version":"6.4.0.4"},{"status":"affected","version":"6.4.0.5"},{"status":"affected","version":"6.4.0.6"},{"status":"affected","version":"6.4.0.7"},{"status":"affected","version":"6.4.0.8"},{"status":"affected","version":"6.4.0.9"},{"status":"affected","version":"6.4.0.10"},{"status":"affected","version":"6.4.0.11"},{"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /containers/cna/affected/1

{"product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.1"},{"status":"affected","version":"9.12.1.2"},{"status":"affected","version":"9.12.1.3"},{"status":"affected","version":"9.12.2"},{"status":"affected","version":"9.12.2.4"},{"status":"affected","version":"9.12.2.5"},{"status":"affected","version":"9.12.2.9"},{"status":"affected","version":"9.12.3"},{"status":"affected","version":"9.12.3.2"},{"status":"affected","version":"9.12.3.7"},{"status":"affected","version":"9.12.4"},{"status":"affected","versio…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /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"},{"status":"affected","version":"6.4.0.1"},{"status":"affected","version":"6.4.0.3"},{"status":"affected","version":"6.4.0.2"},{"status":"affected","version":"6.4.0.4"},{"status":"affected","version":"6.4.0.5"},{"status":"affected","version":"6.4.0.6"},{"status":"affected","version":"6.4.0.7"},{"status":"affected","version":"6.4.0.8"},{"status":"affected","version":"6.4.0.9"},{"status":"affected","version":"6.4.0.10"},{"status":"affected","version":"6.4.0.11"},{"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /containers/cna/affected/1
{"product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.1"},{"status":"affected","version":"9.12.1.2"},{"status":"affected","version":"9.12.1.3"},{"status":"affected","version":"9.12.2"},{"status":"affected","version":"9.12.2.4"},{"status":"affected","version":"9.12.2.5"},{"status":"affected","version":"9.12.2.9"},{"status":"affected","version":"9.12.3"},{"status":"affected","version":"9.12.3.2"},{"status":"affected","version":"9.12.3.7"},{"status":"affected","version":"9.12.4"},{"status":"affected","versio…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.8,"baseSeverity":"MEDIUM","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:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-401","description":"Missing Release of Memory after Effective Lifetime","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-asaftd-ikev2-dos-eBueGdEG","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ikev2-dos-eBueGdEG"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a629d0d54fd23845748c25062b4c19d3cc3e8187a20204b13f59388497107af2 · sha256:b757cfd1cf2b7662… · /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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