CVE-2026-76443 PUBLISHED

Cisco Secure Email Gateway Security Hardening Release

Assigner: cisco
Reserved: 19.08.2026 Published: 14.09.2026 Updated: 15.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Product Status

Vendor Cisco
Product Cisco Secure Email
Versions Default: unknown
  • Version 14.0.0-698 is affected
  • Version 13.5.1-277 is affected
  • Version 13.0.0-392 is affected
  • Version 14.2.0-620 is affected
  • Version 13.0.5-007 is affected
  • Version 13.5.4-038 is affected
  • Version 14.2.1-020 is affected
  • Version 14.3.0-032 is affected
  • Version 15.0.0-104 is affected
  • Version 15.0.1-030 is affected
  • Version 15.5.0-048 is affected
  • Version 15.5.1-055 is affected
  • Version 15.5.2-018 is affected
  • Version 16.0.0-050 is affected
  • Version 15.0.3-002 is affected
  • Version 16.0.0-054 is affected
  • Version 15.5.3-022 is affected
  • Version 16.0.1-017 is affected
  • Version 15.5.4-012 is affected
  • Version 16.0.4-016 is affected
  • Version 15.0.5-016 is affected
  • Version 16.0.2-112 is affected
  • Version 16.0.3-044 is affected
Vendor Cisco
Product Cisco Secure Email and Web Manager
Versions Default: unknown
  • Version 13.6.2-023 is affected
  • Version 13.6.2-078 is affected
  • Version 13.0.0-249 is affected
  • Version 13.0.0-277 is affected
  • Version 13.8.1-052 is affected
  • Version 13.8.1-068 is affected
  • Version 13.8.1-074 is affected
  • Version 14.0.0-404 is affected
  • Version 12.8.1-002 is affected
  • Version 14.1.0-227 is affected
  • Version 13.6.1-201 is affected
  • Version 14.2.0-203 is affected
  • Version 14.2.0-212 is affected
  • Version 12.8.1-021 is affected
  • Version 13.8.1-108 is affected
  • Version 14.2.0-224 is affected
  • Version 14.3.0-120 is affected
  • Version 15.0.0-334 is affected
  • Version 15.5.1-024 is affected
  • Version 15.5.1-029 is affected
  • Version 15.5.2-005 is affected
  • Version 16.0.0-195 is affected
  • Version 15.5.3-017 is affected
  • Version 16.0.1-010 is affected
  • Version 15.0.1-035 is affected
  • Version 16.0.2-088 is affected
  • Version 15.5.4-007 is affected
  • Version 15.0.2-007 is affected
  • Version 16.0.4-010 is affected
  • Version 16.0.3-016 is affected

Exploits

Except as otherwise noted previously, the Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References

Problem Types

  • Improper Neutralization cwe