CVE-2025-20393
Cisco Multiple Products Improper Input Validation Vulnerability
IN CISA KEV
Cisco Secure Email Gateway, Secure Email, AsyncOS Software, and Web Manager appliances contains an improper input validation vulnerability that allows threat actors to execute arbitrary commands with root privileges on the underlying operating system of an affected appliance.
- Vendor
- Cisco
- Product
- Multiple Products
- CVSS
- No score recorded (no NVD record loaded for this entry)
- CWE
- CWE-20
- Published
- Not recorded
- NVD modified
- Not recorded
CISA KEV
- Date added
- 2025-12-17
- Due date
- 2025-12-24
- Ransomware use
- Unknown
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS
32.4% chance of exploitation in the next 30 days (percentile 98th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
Data last updated 18 Oct 2026. Sources: NVD API 2.0, CISA KEV catalog, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.