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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-20054

CVE-2026-20054: 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.

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Vendor advisory comparison

Cisco

1 advisory
  • Advisory severityMedium5.8

    Medium [CVE-2026-20053 +3] Multiple Cisco Products Snort 3 Visual Basic for Applications Denial of Service Vulnerabilities

    cisco-sa-ftd-snort3-vbavuls-96UcVVedSource published Source updated

    This bulletin covers 4 CVEs. The products, versions, score and guidance below describe the bulletin; check its source for applicability to this specific CVE.

    Multiple Cisco products are affected by vulnerabilities in the Snort 3 Visual Basic for Applications (VBA) Decompression Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service (DoS) condition. For more information about these vulnerabilities, see the Details section of this advisory. Cisco has released software updates that address these vulnerabilities. There are workarounds that address these vulnerabilities. This advisory is part of the March 2026 release of the Cisco Secure Firewall ASA,…

    Related products — impact not confirmed
    • Cisco Cyber Vision
    • Cisco UTD SNORT IPS Engine Software
    • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.0.1
    • Cisco Secure Firewall Threat Defense (FTD) Software 7.2.1

    5 more entries in the full advisory.

    Source-reported affected versions
    • Scope: For information about which products were affected by these vulnerabilities at the time of publication, see the following sections. Open Source Snort 3
    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 is a workaround that addresses these vulnerabilities.
    • The vulnerabilities described in this advisory are due to VBA decompression, which is not enabled by default for any Snort 3 Inspector. If VBA decompression is disabled until the device can be upgraded to a fixed software release, the device will not be affected by these vulnerabilities. For further details on how to remove the VBA configuration, see the following references:
    • Firewall Management Center Features in Version 7.2.0
    • Snort 3 Inspector Reference

    2 more entries in the full advisory.

    Full advisory and evidenceOpen source bulletin

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