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
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Cisco Cisco Secure Email
Default version status: unknown
14.0.0-698affected13.5.1-277affected13.0.0-392affected14.2.0-620affected13.0.5-007affected13.5.4-038affected14.2.1-020affected14.3.0-032affected15.0.0-104affected15.0.1-030affected15.5.0-048affected15.5.1-055affected15.5.2-018affected16.0.0-050affected15.0.3-002affected16.0.0-054affected15.5.3-022affected16.0.1-017affected15.5.4-012affected16.0.4-016affected15.0.5-016affected16.0.2-112affected16.0.3-044affected