CVE-2025-20393 — Cisco Multiple Products Improper Input Validation Vulnerability
2025-12-17 • CISA Known Exploited Vulnerability
[event] 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.
> AFFECTED SOFTWARE
| Field | Value |
|---|---|
| Vendor | Cisco |
| Product | Multiple Products |
| CWE | CWE-20 |
| CVE ID | CVE-2025-20393 |
| Date Added | 2025-12-17 |
| Due Date | 2025-12-24 |
| Ransomware Campaign | Unknown |
> MITIGATION
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Due Date: 2025-12-24