Cisco Meraki Security Hardening Release: October 2026

As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.

These vulnerabilities were found during internal testing and are not known to be actively exploited. To assist customers in patching and streamline the disclosure process, Cisco has grouped these issues by their underlying vulnerability class — Common Weakness Enumeration (CWE) — and assigned a single Common Vulnerabilities and Exposures identifier (CVE ID) to each CWE grouping.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

CVE-2026-76463 — Cisco Meraki Security Hardening Release: October 2026 - Improper Access Control Vulnerabilities (CVSS 3.1 8.8, CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:L) CVE-2026-76464 — Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities (CVSS 3.1 9.6, CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H) CVE-2026-76467 — Cisco Meraki Software Hardening Release - Resource Lifetime Management Vulnerabilities (CVSS 3.1 7.5, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) CVE-2026-76468 — Cisco Meraki Hardening Release - Input Validation Vulnerabilities (CVSS 3.1 8.2, CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L) CVE-2026-76469 — Cisco Meraki Security Hardening Release: October 2026 Insufficient Control Flow Management Vulnerabilities (CVSS 3.1 7.4, CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H) CVE-2026-76470 — Cisco Meraki Hardening Release - Incorrect Calculation Vulnerabilities (CVSS 3.1 8.8, CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) CVE-2026-76472 — Cisco Meraki Security Hardening Release October 2026 - Improper Neutralization of Special Elements Vulnerabilities (CVSS 3.1 8.8, CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H)