CVE-2026-76464
Received Received - Intake

Buffer Management Flaw in Cisco Networking Software

Publication date: 2026-10-07

Last updated on: 2026-10-07

Assigner: Cisco Systems, Inc.

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 Scores

EPSS Scores

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Meta Information

Published
2026-10-07
Last Modified
2026-10-07
Generated
2026-10-07
AI Q&A
2026-10-07
EPSS Evaluated
N/A
NVD
CVE-2026-76464
EUVD
EUVD-2026-94476

Affected Vendors & Products

Showing 117 associated CPEs
Vendor Product Version / Range
Cisco Cisco Campus Gateway Software CG 33.1.3
Cisco Cisco Meraki MR Wireless Access Points Software MR 33.1.2
Cisco Cisco Meraki MR Wireless Access Points Software MR 30.6
Cisco Cisco Meraki MR Wireless Access Points Software MR 32.1.7
Cisco Cisco Meraki MR Wireless Access Points Software MR 32.2.3
Cisco Cisco Meraki MR Wireless Access Points Software MR 32.2.4
Cisco Cisco Meraki MR Wireless Access Points Software MR 33.1.1
Cisco Cisco Meraki MV Firmware 4.20
Cisco Cisco Meraki MV Firmware 5.0
Cisco Cisco Meraki MV Firmware 5.1
Cisco Cisco Meraki MV Firmware 5.2
Cisco Cisco Meraki MV Firmware 5.3
Cisco Cisco Meraki MV Firmware 5.4
Cisco Cisco Meraki MV Firmware 5.4.1
Cisco Cisco Meraki MV Firmware 5.5
Cisco Cisco Meraki MV Firmware 5.5.1
Cisco Cisco Meraki MV Firmware 5.6
Cisco Cisco Meraki MV Firmware 5.6.1
Cisco Cisco Meraki MV Firmware 6.0
Cisco Cisco Meraki MV Firmware 6.0.1
Cisco Cisco Meraki MV Firmware 5.6.2
Cisco Cisco Meraki MV Firmware 6.0.2
Cisco Cisco Meraki MV Firmware 6.1
Cisco Cisco Meraki MV Firmware 6.1.1
Cisco Cisco Meraki MV Firmware 6.1.2
Cisco Cisco Meraki MV Firmware 6.2
Cisco Cisco Meraki MV Firmware 6.2.1
Cisco Cisco Meraki MV Firmware 6.2.2
Cisco Cisco Meraki MV Firmware 6.3
Cisco Cisco Meraki MV Firmware 6.3.2
Cisco Cisco Meraki MV Firmware 2.0
Cisco Cisco Meraki MV Firmware 2.1
Cisco Cisco Meraki MV Firmware 2.2
Cisco Cisco Meraki MV Firmware 3.0
Cisco Cisco Meraki MV Firmware 3.1
Cisco Cisco Meraki MV Firmware 3.2
Cisco Cisco Meraki MV Firmware 3.3
Cisco Cisco Meraki MV Firmware 3.4
Cisco Cisco Meraki MV Firmware 3.5
Cisco Cisco Meraki MV Firmware 3.6
Cisco Cisco Meraki MV Firmware 3.7
Cisco Cisco Meraki MV Firmware 3.8
Cisco Cisco Meraki MV Firmware 3.9
Cisco Cisco Meraki MV Firmware 3.10
Cisco Cisco Meraki MV Firmware 3.11
Cisco Cisco Meraki MV Firmware 3.12
Cisco Cisco Meraki MV Firmware 3.13
Cisco Cisco Meraki MV Firmware 3.14
Cisco Cisco Meraki MV Firmware 3.15
Cisco Cisco Meraki MV Firmware 3.16
Cisco Cisco Meraki MV Firmware 3.17
Cisco Cisco Meraki MV Firmware 3.18
Cisco Cisco Meraki MV Firmware 3.19
Cisco Cisco Meraki MV Firmware 3.20
Cisco Cisco Meraki MV Firmware 3.21
Cisco Cisco Meraki MV Firmware 3.22
Cisco Cisco Meraki MV Firmware 3.23
Cisco Cisco Meraki MV Firmware 3.24
Cisco Cisco Meraki MV Firmware 3.25
Cisco Cisco Meraki MV Firmware 3.26
Cisco Cisco Meraki MV Firmware 3.27
Cisco Cisco Meraki MV Firmware 3.28
Cisco Cisco Meraki MV Firmware 3.29
Cisco Cisco Meraki MV Firmware 3.30
Cisco Cisco Meraki MV Firmware 3.31
Cisco Cisco Meraki MV Firmware 3.32
Cisco Cisco Meraki MV Firmware 3.33
Cisco Cisco Meraki MV Firmware 3.34
Cisco Cisco Meraki MV Firmware 3.35
Cisco Cisco Meraki MV Firmware 3.36
Cisco Cisco Meraki MV Firmware 4.0
Cisco Cisco Meraki MV Firmware 4.1
Cisco Cisco Meraki MV Firmware 4.2
Cisco Cisco Meraki MV Firmware 4.3
Cisco Cisco Meraki MV Firmware 4.4
Cisco Cisco Meraki MV Firmware 4.5
Cisco Cisco Meraki MV Firmware 4.6
Cisco Cisco Meraki MV Firmware 4.7
Cisco Cisco Meraki MV Firmware 4.8
Cisco Cisco Meraki MV Firmware 4.9
Cisco Cisco Meraki MV Firmware 4.10
Cisco Cisco Meraki MV Firmware 4.11
Cisco Cisco Meraki MV Firmware 4.12
Cisco Cisco Meraki MV Firmware 4.13
Cisco Cisco Meraki MV Firmware 4.14
Cisco Cisco Meraki MV Firmware 4.15
Cisco Cisco Meraki MV Firmware 4.16
Cisco Cisco Meraki MV Firmware 4.17
Cisco Cisco Meraki MV Firmware 4.18
Cisco Cisco Meraki MV Firmware 4.18.1
Cisco Cisco Meraki MV Firmware 4.19
Cisco Cisco Meraki MV Firmware MV 7.3
Cisco Cisco Meraki MV Firmware MV 7.3.1
Cisco Cisco Meraki MV Firmware MV 7.3.2
Cisco Cisco Meraki MV Firmware MV 7.2.1
Cisco Cisco Meraki MV Firmware MV 7.2.2
Cisco Cisco Meraki MX Firmware 16.2
Cisco Cisco Meraki MX Firmware 16.3
Cisco Cisco Meraki MX Firmware 16.4
Cisco Cisco Meraki MX Firmware 16.5
Cisco Cisco Meraki MX Firmware 16.6
Cisco Cisco Meraki MX Firmware 17.3
Cisco Cisco Meraki MX Firmware 17.6
Cisco Cisco Meraki MX Firmware 17.7
Cisco Cisco Meraki MX Firmware 17.8
Cisco Cisco Meraki MX Firmware 17.9
Cisco Cisco Meraki MX Firmware 17.10
Cisco Cisco Meraki MX Firmware 18.1
Cisco Cisco Meraki MX Firmware 18.2
Cisco Cisco Meraki MX Firmware 19.1
Cisco Cisco Meraki MX Firmware MX 18.211.2
Cisco Cisco Meraki MX Firmware MX 26.2.1
Cisco Cisco Meraki MX Firmware MX 19.2.8
Cisco Cisco Meraki MX Firmware MX 26.2.2
Cisco Cisco Meraki MX Firmware MX 26.1.4
Cisco Cisco Meraki MX Firmware MX 26.1.5
Cisco Cisco Meraki MX Firmware MX 26.1.6

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-119 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.

Attack-Flow Graph

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Executive Summary

This vulnerability is a buffer management issue classified under CWE-119. It involves improper handling of buffers in software, which can lead to memory corruption, crashes, or arbitrary code execution. Cisco discovered these issues internally and released a software hardening update to address them.

Impact Analysis

This vulnerability could allow attackers to execute arbitrary code, cause denial-of-service conditions, or gain unauthorized access to systems. It primarily affects Cisco networking products like Campus Gateway, Meraki MR wireless access points, MV firmware, and MX firmware.

Compliance Impact

The provided CVE data does not specify direct impacts on compliance with GDPR, HIPAA, or other standards. The vulnerability involves buffer management issues (CWE-119) with a high CVSS score, which could potentially lead to unauthorized access or data breaches, indirectly affecting compliance.

Mitigation Strategies

Apply the latest security patches from Cisco for affected products including Cisco Campus Gateway Software, Meraki MR Wireless Access Points, Meraki MV Firmware, and Meraki MX Firmware.

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