Cisco Networking Devices: CWE-691 Control Flow Management Flaw (CVE-2026-76469)
CVE-2026-76469 Published on October 7, 2026
Cisco Meraki Security Hardening Release: October 2026 Insufficient Control Flow Management Vulnerabilities
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 releases that address multiple internally discovered vulnerabilities.
The vulnerabilities tracked by CVE-2026-76469 are related to insufficient control flow management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-691.
Vulnerability Analysis
Attack Vector:
ADJACENT_NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
CHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH
Weakness Type
Insufficient Control Flow Management
The code does not sufficiently manage its control flow during execution, creating conditions in which the control flow can be modified in unexpected ways.
Affected Versions
Cisco Campus Gateway Software:- Version CG 33.1.3 is affected.
- 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.
- 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.
- 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.