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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-20073

CVE-2026-20073: 1 tracked advisory record across Cisco. Compare vendor sources and published fix guidance.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

NVD detail CVE.org

Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityMedium5.8

    Medium [CVE-2026-20073] Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software Access Control List Bypass Vulnerability

    cisco-sa-asaftd-aclbypass-dos-CVxVRSvQSource published Source updated

    A vulnerability in Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to send traffic that should be denied through an affected device. This vulnerability is due to improper error handling when an affected device that is joining a cluster runs out of memory while replicating access control rules. An attacker could exploit this vulnerability by sending traffic that should be blocked through the device. A successful exploit could allow the attacker to bypass access controls an…

    Related products — impact not confirmed
    • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12.1.2
    • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12.1.3
    • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12.2.4
    • Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 9.12.2.5

    4 more entries in the full advisory.

    Source-reported affected versions
    • Scope: At the time of publication, this vulnerability affected Cisco devices if they were running a vulnerable release of Cisco Secure Firewall ASA Software or Secure FTD Software and were deployed in a cluster configuration.
    Source-reported fixed versions
    No fixed-version detail extracted. This does not mean no fix exists.
    Mitigation guidance
    No mitigation guidance extracted; consult the source.
    Workarounds
    • There are no workarounds that address this vulnerability.
    Full advisory and evidenceOpen source bulletin

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