CRITICAL 9.8 NVD

CVE-2026-20353

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 engineeri

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.

References

Published: 2026-09-14 · Source: NVD · Feed updated: 2026-09-15
This critical severity vulnerability with a CVSS score of 9.8 was published on 2026-09-14 via NVD.

Risk Timeline

CVE Disclosed2026-09-14 · 0 days ago

Remediation Resources

Official Advisory
sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/
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