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Highest advisory severityMedium 1 vendor · 1 advisory

CVE-2026-20026

CVE-2026-20026: 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-2026-20026 +1] Multiple Cisco Products Snort 3 Distributed Computing Environment/Remote Procedure Call Vulnerabilities

    cisco-sa-snort3-dcerpc-vulns-J9HNF4tHSource published Source updated

    This bulletin covers 2 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 processing of Distributed Computing Environment Remote Procedure Call (DCE/RPC) requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, which would result in an interruption of packet inspection. 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.

    Related products — impact not confirmed
    • Cisco UTD SNORT IPS Engine Software
    • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.0.1
    • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.1.1
    • Cisco Secure Firewall Threat Defense (FTD) Software 7.0.2.1

    1 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
    • Release 3.x (first fixed: 3.9.6.0)
    • Release 17.12 (first fixed: 17.12.7 (Mar 2026))
    • Release 17.15 (first fixed: 17.15.5)

    2 more entries in the full advisory.

    Source-reported fixed versions
    • 3.9.6.0
    • 17.12.7 (Mar 2026)
    • 17.15.5
    • 17.18.3 (Apr 2026)

    1 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 3.x: upgrade to 3.9.6.0.
    • Release 17.12: upgrade to 17.12.7 (Mar 2026).
    • Release 17.15: upgrade to 17.15.5.

    2 more entries in the full advisory.

    Workarounds
    • There are no workarounds that address these vulnerabilities.
    Full advisory and evidenceOpen source bulletin

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