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CVE record · CVE-2026-20005

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resultin…

CVSS 5.8 MediumEPSS 0.0056 · 46th percentile

Published by the CVE Program (CNA: cisco) at 4 Mar 2026, 17:02 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Cisco Cisco Secure Firewall Threat Defense (FTD) Software
  • affected 7.6.0
  • affected 7.6.1
  • affected 7.6.2
  • affected 7.6.2.1
  • affected 7.7.0
  • affected 7.7.10
  • affected 7.7.10.1
Cisco Cisco Cyber Vision
  • affected 3.0.4
  • affected 3.0.0
  • affected 3.0.1
  • affected 3.0.2
  • affected 3.0.3
  • affected 3.0.5
  • affected 3.0.6
  • affected 3.1.0
  • affected 3.1.2
  • affected 3.1.1
  • affected 3.2.3
  • affected 3.2.1
  • and 40 more
Cisco Cisco UTD SNORT IPS Engine Software
  • affected 17.2.1r
  • affected 17.3.1a
  • affected 17.3.2
  • affected 17.3.3
  • affected 17.3.4a
  • affected 17.3.6
  • affected 17.3.5
  • affected 17.3.7
  • affected 17.3.8
  • affected 17.4.1a
  • affected 17.4.2
  • affected 17.4.1b
  • and 50 more
Identifiers
CVE-2026-20005
CNA
cisco
Weakness (CWE)
CWE-392
Tags
Published
4 Mar 2026
Updated
4 Mar 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.8 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L CNA (cisco)
  • CISA KEV Not listed.
  • EPSS 0.0056, the 46th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 4 Mar 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.