CVE-2026-76464

Received
Published: 07 Oct 2026, 16:18
Last modified:07 Oct 2026, 18:05

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.6 CRITICAL
v3.1 (cve.org)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

07 Oct 2026, 16:18
Published
Vulnerability first disclosed
07 Oct 2026, 18:05
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.6CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Techniques & Countermeasures

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • 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 | 3.26 | 3.27 | 3.28 | 3.29 | 3.30 | 3.31 | 3.32 | 3.33 | 3.34 | 3.35 | 3.36 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 | 4.6 | 4.7 | 4.8 | 4.9 | 4.10 | 4.11 | 4.12 | 4.13 | 4.14 | 4.15 | 4.16 | 4.17 | 4.18 | 4.18.1 | 4.19 | MV 7.3 | MV 7.3.1 | MV 7.3.2 | MV 7.2.1 | MV 7.2.2

  • 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

References (1)