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Highest advisory severityCritical 1 vendor · 1 advisory

CVE-2026-20333

CVE-2026-20333: 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.

Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityCritical9.9

    Critical [CVE-2026-20329 +7] Cisco Secure Firewall Adaptive Security Appliance, Secure Firewall Threat Defense, and Secure Firewall Management Center Software Hardening Release: September 2026

    cisco-sa-hardening-asaftdfmc-uvpPROhNSource published Source updated

    This bulletin covers 8 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software and Cisco Secure Firewall Management Center (FMC) Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. These vulnerabilities were found during internal testing. Two of them are known to be actively exploited. For more information, see the following advisories: Cisco Secure Firewall Management Center Software Static Credential Vulnerability and Cisco Secure Firewall Management Center Software Authentication Bypass Vulnerability. To assist customers…

    Affected products in this advisory
    • Secure Firewall Management Center (FMC)
    • Secure Firewall Threat Defense (FTD) Software
    • Secure Firewall Adaptive Security Appliance (ASA) Software
    Source-reported affected versions
    • Scope: These vulnerabilities affect the following Cisco products, regardless of device configuration:
    • Release N/A (first fixed: 9.16 and earlier / 9.18)
    • Release 9.18.4.94 (first fixed: 9.18.4.135 / 9.20.4.235)
    • Release 9.22 (first fixed: 9.20.4.49 / 9.22.3.26)

    9 more entries in the full advisory.

    Source-reported fixed versions
    • 9.16 and earlier / 9.18
    • 9.18.4.135 / 9.20.4.235
    • 9.20.4.49 / 9.22.3.26
    • 9.23 / 9.23.1.47

    8 more entries in the full advisory.

    Mitigation guidance
    • Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
    • Release N/A: upgrade to 9.16 and earlier / 9.18.
    • Release 9.18.4.94: upgrade to 9.18.4.135 / 9.20.4.235.
    • Release 9.22: upgrade to 9.20.4.49 / 9.22.3.26.

    5 more entries in the full advisory.

    Workarounds
    • There are no workarounds that address these vulnerabilities.

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