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CVE-2026-76464: Cisco Meraki Hardening Release October 2026 - Buffer Management Vulnerabilities
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-07 · updated 2026-10-08
- Weakness: CWE-119
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.
Affected products
- Cisco Campus Gateway Software: CG 33.1.3
- 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 Meraki MV Firmware: 4.20, 5.0, 5.1, 5.2, 5.3, 5.4 (+83)
- Cisco Meraki MX Firmware: 16.2, 16.3, 16.4, 16.5, 16.6, 17.3 (+15)
In the news
References
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