CVE-2026-76440

CRITICAL9.8

Cisco Secure Email Gateway Security Hardening Release

Published Sep 14, 2026

Modified Yesterday

Details

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.

The vulnerabilities tracked by CVE-2026-76440 are related to path traversal issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-23.

References

WEB

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-esa-dfCrfXkm

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-76440

WEB

https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

CVSS Analysis

CVSS v3.1

9.8

Exploitability

Attack Vector