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9.8 Critical

CVE-2026-20353 As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and…

Description

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-2026-20353 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.

Affected products and versions

Product Affected versions Fixed in
Cisco Secure Email 16.0 16.0.0-050 → 16.0.4-016 No fix stated
Cisco Secure Email 15.5 15.5.0-048 → 15.5.4-012 No fix stated
Cisco Secure Email 15.0 15.0.0-104 → 15.0.5-016 No fix stated
Cisco Secure Email 14.3.0-032 No fix stated
Cisco Secure Email 14.2 14.2.0-620 → 14.2.1-020 No fix stated
Cisco Secure Email 14.0.0-698 No fix stated
Cisco Secure Email 13.5 13.5.1-277 → 13.5.4-038 No fix stated
Cisco Secure Email 13.0 13.0.0-392 → 13.0.5-007 No fix stated

References

Timeline

  1. Published
  2. Last modified

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