Security Advisory Desk
unratedQCS priority 70/100Cisco

Cisco Advance Notification for Publication of October 7, 2026, Security Advisories

Cisco will publish security advisories on October 7, 2026, disclosing vulnerabilities and recommending upgrades for several Cisco products, including controllers, licenses, Meraki devices, and NX-OS software. Customers should plan to update to the fixed software once available to protect their systems.

Published 30/9/2026, 4:00:00 pmVerified 1/10/2026, 3:21:32 amRevision 1
Cisco unrated network security advisory visual

In plain language

What this advisory means

Cisco will publish security advisories on October 7, 2026, disclosing vulnerabilities and recommending upgrades for several Cisco products, including controllers, licenses, Meraki devices, and NX-OS software. Customers should plan to update to the fixed software once available to protect their systems.

Technical explanation

How the issue affects the environment

On October 7, 2026, Cisco PSIRT will release advisories detailing security vulnerabilities and fixed software versions for multiple Cisco products, such as the Application Policy Infrastructure Controller, Finesse License On-Prem, Meraki devices, and various NX-OS software platforms including MDS 9000 and Nexus series switches. These releases are security hardening updates addressing vulnerabilities. Cisco strongly advises customers to upgrade to the indicated fixed software to remediate these security issues. No interim workarounds are provided.

Operational impact

Why teams should care

If customers do not upgrade to the fixed software versions once published, their Cisco devices may remain vulnerable, potentially exposing the network to security risks. Timely upgrading minimizes risk and ensures continued security compliance and operational integrity.

Immediate action

Cisco strongly recommends upgrading to the fixed software releases that will be published on October 7, 2026, as indicated in the forthcoming advisories to remediate disclosed vulnerabilities.

Affected and fixed releases

Affected versionsConfirm in the official vendor advisory
Fixed versionsConfirm in the official vendor advisory

Temporary risk reduction

No interim workarounds are available for these vulnerabilities at this time according to Cisco.

Evidence and validation checklist

  • Advance notification of vulnerabilities and planned fixed software releases published by Cisco PSIRT on September 30, 2026.
  • List of affected Cisco products and confirmation of security hardening release status.
  • Cisco's strong recommendation to upgrade to fixed software to remediate vulnerabilities.
  • Statement that no interim workarounds are available.
  • Reference to Cisco’s vulnerability disclosure and patching policies.

Authoritative reference

Cisco PSIRT Advisories

QCS detected and normalized this record from the official source. Vendor guidance remains authoritative.

Open source