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CVE-2026-20015

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 impact the availability of services to devices elsewhere in the network. This vulnerability is due to a memory leak when parsing IKEv2 packets. An attacker could exploit this vulnerability by sending crafted IKEv2 packets to an affected device. A successful exploit could allow the attack
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:61ae5004c3e904763d298add21e501d1ce8d34f00e21b414a723b5de3b104689
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 Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.18.1"},{"status":"affected","version":"9.18.1.3"},{"status":"affected","version":"9.18.2"},{"status":"affected","version":"9.18.2.5"},{"status":"affected","version":"9.18.2.7"},{"status":"affected","version":"9.18.2.8"},{"status":"affected","version":"9.18.3"},{"status":"affected","version":"9.18.3.39"},{"status":"affected","version":"9.18.3.46"},{"status":"affected","version":"9.18.3.53"},{"status":"affected","version":"9.18.3.55"},{"status":"affected","…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /containers/cna/affected/0

{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.2.0"},{"status":"affected","version":"7.2.0.1"},{"status":"affected","version":"7.2.1"},{"status":"affected","version":"7.2.2"},{"status":"affected","version":"7.2.3"},{"status":"affected","version":"7.2.4"},{"status":"affected","version":"7.2.4.1"},{"status":"affected","version":"7.2.5"},{"status":"affected","version":"7.2.5.1"},{"status":"affected","version":"7.2.6"},{"status":"affected","version":"7.2.7"},{"status":"affected","version":"7.2.5.2"},{"status":"affecte…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.18.1"},{"status":"affected","version":"9.18.1.3"},{"status":"affected","version":"9.18.2"},{"status":"affected","version":"9.18.2.5"},{"status":"affected","version":"9.18.2.7"},{"status":"affected","version":"9.18.2.8"},{"status":"affected","version":"9.18.3"},{"status":"affected","version":"9.18.3.39"},{"status":"affected","version":"9.18.3.46"},{"status":"affected","version":"9.18.3.53"},{"status":"affected","version":"9.18.3.55"},{"status":"affected","…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /containers/cna/affected/0
{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.2.0"},{"status":"affected","version":"7.2.0.1"},{"status":"affected","version":"7.2.1"},{"status":"affected","version":"7.2.2"},{"status":"affected","version":"7.2.3"},{"status":"affected","version":"7.2.4"},{"status":"affected","version":"7.2.4.1"},{"status":"affected","version":"7.2.5"},{"status":"affected","version":"7.2.5.1"},{"status":"affected","version":"7.2.6"},{"status":"affected","version":"7.2.7"},{"status":"affected","version":"7.2.5.2"},{"status":"affecte…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /containers/cna/affected/1

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:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /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:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /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:v2:94f767c507f9563f46165ffda3f11b1fc4366664c146d35494783766ab882b5a · sha256:8b62d9715ec927ce… · /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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