CVE-2025-20393

10.0 CRITICAL CISA KEV - Actively Exploited

Published: December 17, 2025 Modified: December 18, 2025

Description

Cisco is aware of a potential vulnerability.  Cisco is currently investigating and will update these details as appropriate as more information becomes available.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-attack-N9bf4

Source: psirt@cisco.com

Vendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20393

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

2 reference(s) from NVD

Quick Stats

CVSS v3 Score

10.0 / 10.0

EPSS (Exploit Probability)

6.8%

91th percentile

Exploitation Status

Actively Exploited

Remediation due: 2025-12-24

Weaknesses (CWE)

CWE-20

Affected Vendors

cisco

Related CVEs