Cisco security advisory (AV26-471)

Serial number: AV26-471
Date: May 14, 2026

On May 14, 2026, Cisco published security advisories to address critical vulnerabilities in the following products:

  • Cisco Catalyst SD-WAN Release – versions 20.9 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.10 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.11 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.12 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.13 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.14 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.15 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.16 and prior
  • Cisco Catalyst SD-WAN Release – versions 20.18 and prior
  • Cisco Catalyst SD-WAN Release – versions 26.1 and prior

Cisco is aware of limited exploitation of CVE-2026-20182.

On May 14, 2026, Cybersecurity and Infrastructure Security Agency (CISA) added CVE-2026-20182 to their Known Exploited Vulnerabilities (KEV) Database.

The Cyber Centre encourages users and administrators to review the provided web links and apply the necessary updates.

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