CVE-2025-20393

CriticalCritical GapWorkaround

Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Exploit

CVSS Score

10.0

Severity

Critical

Exploit Intelligence

Weaponized

Yes

Detectable

No

CISA KEV

Not Listed

Risk Level

Critical Gap

Exploit Sources

github_poccisa_kev

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Published: 12/17/2025