CVE-2025-20393 — Actively Exploited: Multiple Products (Cisco)
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.
| CVE ID | CVE-2025-20393 |
|---|---|
| Vendor | Cisco |
| Product | Multiple Products |
| Vulnerability name | Cisco Multiple Products Improper Input Validation Vulnerability |
| Date added | 2025-12-17 |
| Remediation due | 2025-12-24 |
| Known 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. |
| Description | 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. |
| Source | CISA Known Exploited Vulnerabilities |
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