CVE-2026-76464 PUBLISHED

Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities

Assigner: cisco
Reserved: 19.08.2026 Published: 07.10.2026 Updated: 07.10.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS Score: 9.6

Product Status

Vendor Cisco
Product Cisco Campus Gateway Software
Versions Default: unknown
  • Version CG 33.1.3 is affected
Vendor Cisco
Product Cisco Meraki MR Wireless Access Points Software
Versions Default: unknown
  • Version MR 33.1.2 is affected
  • Version MR 30.6 is affected
  • Version MR 32.1.7 is affected
  • Version MR 32.2.3 is affected
  • Version MR 32.2.4 is affected
  • Version MR 33.1.1 is affected
Vendor Cisco
Product Cisco Meraki MV Firmware
Versions Default: unknown
  • Version 4.20 is affected
  • Version 5.0 is affected
  • Version 5.1 is affected
  • Version 5.2 is affected
  • Version 5.3 is affected
  • Version 5.4 is affected
  • Version 5.4.1 is affected
  • Version 5.5 is affected
  • Version 5.5.1 is affected
  • Version 5.6 is affected
  • Version 5.6.1 is affected
  • Version 6.0 is affected
  • Version 6.0.1 is affected
  • Version 5.6.2 is affected
  • Version 6.0.2 is affected
  • Version 6.1 is affected
  • Version 6.1.1 is affected
  • Version 6.1.2 is affected
  • Version 6.2 is affected
  • Version 6.2.1 is affected
  • Version 6.2.2 is affected
  • Version 6.3 is affected
  • Version 6.3.2 is affected
  • Version 2.0 is affected
  • Version 2.1 is affected
  • Version 2.2 is affected
  • Version 3.0 is affected
  • Version 3.1 is affected
  • Version 3.2 is affected
  • Version 3.3 is affected
  • Version 3.4 is affected
  • Version 3.5 is affected
  • Version 3.6 is affected
  • Version 3.7 is affected
  • Version 3.8 is affected
  • Version 3.9 is affected
  • Version 3.10 is affected
  • Version 3.11 is affected
  • Version 3.12 is affected
  • Version 3.13 is affected
  • Version 3.14 is affected
  • Version 3.15 is affected
  • Version 3.16 is affected
  • Version 3.17 is affected
  • Version 3.18 is affected
  • Version 3.19 is affected
  • Version 3.20 is affected
  • Version 3.21 is affected
  • Version 3.22 is affected
  • Version 3.23 is affected
  • Version 3.24 is affected
  • Version 3.25 is affected
  • Version 3.26 is affected
  • Version 3.27 is affected
  • Version 3.28 is affected
  • Version 3.29 is affected
  • Version 3.30 is affected
  • Version 3.31 is affected
  • Version 3.32 is affected
  • Version 3.33 is affected
  • Version 3.34 is affected
  • Version 3.35 is affected
  • Version 3.36 is affected
  • Version 4.0 is affected
  • Version 4.1 is affected
  • Version 4.2 is affected
  • Version 4.3 is affected
  • Version 4.4 is affected
  • Version 4.5 is affected
  • Version 4.6 is affected
  • Version 4.7 is affected
  • Version 4.8 is affected
  • Version 4.9 is affected
  • Version 4.10 is affected
  • Version 4.11 is affected
  • Version 4.12 is affected
  • Version 4.13 is affected
  • Version 4.14 is affected
  • Version 4.15 is affected
  • Version 4.16 is affected
  • Version 4.17 is affected
  • Version 4.18 is affected
  • Version 4.18.1 is affected
  • Version 4.19 is affected
  • Version MV 7.3 is affected
  • Version MV 7.3.1 is affected
  • Version MV 7.3.2 is affected
  • Version MV 7.2.1 is affected
  • Version MV 7.2.2 is affected
Vendor Cisco
Product Cisco Meraki MX Firmware
Versions Default: unknown
  • Version 16.2 is affected
  • Version 16.3 is affected
  • Version 16.4 is affected
  • Version 16.5 is affected
  • Version 16.6 is affected
  • Version 17.3 is affected
  • Version 17.6 is affected
  • Version 17.7 is affected
  • Version 17.8 is affected
  • Version 17.9 is affected
  • Version 17.10 is affected
  • Version 18.1 is affected
  • Version 18.2 is affected
  • Version 19.1 is affected
  • Version MX 18.211.2 is affected
  • Version MX 26.2.1 is affected
  • Version MX 19.2.8 is affected
  • Version MX 26.2.2 is affected
  • Version MX 26.1.4 is affected
  • Version MX 26.1.5 is affected
  • Version MX 26.1.6 is affected

Exploits

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References

Problem Types

  • Improper Restriction of Operations within the Bounds of a Memory Buffer cwe