CVE-2026-76443criticalCWE-707

CVE-2026-76443: critical vulnerability in Cisco Secure Email

Cisco Secure Email Gateway Security Hardening Release

Published · Updated

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43Vexday Risk Score

Patch soon. It has a working public exploit.

ssvc Attendcvss 9.8epss 2.4%
from disclosure to weaponsame day
Published on NVDSep 14
metasploitSep 14
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-2026-76443 are related to issues with improper neutralization that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Cisco · Cisco Secure EmailCisco · Cisco Secure Email and Web Manager
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