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Critical · 9.6 CVE-2026-76464 EUVD-2026-94476GHSA-gmqq-qr7p-pfwh

Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities

Published Oct 7, 2026 · Updated Nov 7, 2026 · Assigned by cisco

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco networking engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.

The vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119.

Affected products

VendorProductAffectedFixed
Cisco Cisco Campus Gateway Software CG 33.1.3 —
Cisco Cisco Meraki MR Wireless Access Points Software MR 33.1.2, MR 30.6, MR 32.1.7, MR 32.2.3, MR 32.2.4, MR 33.1.1 —
Cisco Cisco Meraki MV Firmware 4.20, 5.0, 5.1, 5.2, 5.3, 5.4, 5.4.1, 5.5, 5.5.1, 5.6, 5.6.1, 6.0, 6.0.1, 5.6.2, 6.0.2, 6.1, 6.1.1, 6.1.2, 6.2, 6.2.1, 6.2.2, 6.3, 6.3.2, 2.0, 2.1, 2.2, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17, 3.18, 3.19, 3.20, 3.21, 3.22, 3.23, 3.24, 3.25, … —
Cisco Cisco Meraki MX Firmware 16.2, 16.3, 16.4, 16.5, 16.6, 17.3, 17.6, 17.7, 17.8, 17.9, 17.10, 18.1, 18.2, 19.1, MX 18.211.2, MX 26.2.1, MX 19.2.8, MX 26.2.2, MX 26.1.4, MX 26.1.5, MX 26.1.6 —

Advisories 2

References