Signalis
sign in--:--:--UTC
CVEs

CVE-2025-20393

exploited in the wild☆ pin
CVSS
10.0
Reports
5
First seen
Dec 18, 2025
Last seen
Oct 14, 2026
Affected product

Cisco SEG (16.0, 15.5, 15.0, 14.2 and earlier) and SEWM (16.0, 15.5, 15.0 and earlier)

Recent reports

Critical

Cisco patches actively exploited Secure Email Gateway zero-day (CVE-2026-76519)

Bleeping ComputerCritical

Cisco patches Secure Email Gateway zero-day exploited in attacks

Bleeping ComputerCritical

Cisco SEG and SEWM AsyncOS Improper Input Validation RCE (CVE-2025-20393)

NICS TaiwanCritical

Critical Vulnerability in Cisco Secure Email and Web Manager (CVE-2025-20393)

CERT-EU AdvisoriesCritical

Critical RCE Vulnerability in Cisco AsyncOS Under Active Exploitation

GovCERT.HK

This page shows data on a 7-day delay. Free accounts get the full delayed feed; real-time reports, indicators, and the API start at $29/mo.

Sign upSee plans