Buffer overflow in Cisco Campus Gateway Software
CVE-2026-76464
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Cisco Campus Gateway Software — versions CG 33.1.3
- Cisco Meraki Mr Wireless Access Points Software — versions MR 30.6, MR 32.1.7, MR 32.2.3
- Cisco Meraki Mv Firmware — versions 2.0, 2.1, 2.2
- Cisco Meraki Mx Firmware — versions 16.2, 16.3, 16.4
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-76464?
- CVE-2026-76464 is a critical-severity vulnerability in Cisco Campus Gateway Software, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.6/10. Published 2026-10-07.
- How severe is CVE-2026-76464?
- Critical severity. CVSS v3 base score is 9.6 out of 10.