CVE-2026-76464
Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities
CVSS Score
9.6
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-119 |
| Vendor | cisco |
| Product | cisco campus gateway software |
| Ecosystems | |
| Industries | NetworkingTelecommunications |
| Published | Oct 7, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
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