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.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

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

Configurations

No configuration.

History

07 Oct 2026, 17:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-07 17:16

Updated : 2026-10-08 20:08

NVD link : CVE-2026-76464

Mitre link : CVE-2026-76464

CVE.ORG link : CVE-2026-76464

JSON object : View

Products Affected

No product.

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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"version": "4.17"}, {"status": "affected", "version": "4.18"}, {"status": "affected", "version": "4.18.1"}, {"status": "affected", "version": "4.19"}, {"status": "affected", "version": "MV 7.3"}, {"status": "affected", "version": "MV 7.3.1"}, {"status": "affected", "version": "MV 7.3.2"}, {"status": "affected", "version": "MV 7.2.1"}, {"status": "affected", "version": "MV 7.2.2"}], "defaultStatus": "unknown"}, {"vendor": "Cisco", "product": "Cisco Meraki MX Firmware", "versions": [{"status": "affected", "version": "16.2"}, {"status": "affected", "version": "16.3"}, {"status": "affected", "version": "16.4"}, {"status": "affected", "version": "16.5"}, {"status": "affected", "version": "16.6"}, {"status": "affected", "version": "17.3"}, {"status": "affected", "version": "17.6"}, {"status": "affected", "version": "17.7"}, {"status": "affected", "version": "17.8"}, {"status": "affected", "version": "17.9"}, {"status": "affected", "version": "17.10"}, {"status": "affected", "version": "18.1"}, {"status": "affected", "version": "18.2"}, {"status": "affected", "version": "19.1"}, {"status": "affected", "version": "MX 18.211.2"}, {"status": "affected", "version": "MX 26.2.1"}, {"status": "affected", "version": "MX 19.2.8"}, {"status": "affected", "version": "MX 26.2.2"}, {"status": "affected", "version": "MX 26.1.4"}, {"status": "affected", "version": "MX 26.1.5"}, {"status": "affected", "version": "MX 26.1.6"}], "defaultStatus": "unknown"}]}], "published": "2026-10-07T17:16:59.053", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-meraki-os-drbEX9GH", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-119"}]}], "descriptions": [{"lang": "en", "value": "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.\r\n\r\nThe vulnerabilities tracked by this CVE-2026-76464 are related to buffer management issues that are grouped under the Common Weakness Enumeration (CWE) CWE-119."}], "lastModified": "2026-10-08T20:08:45.857", "sourceIdentifier": "psirt@cisco.com"}