Description

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker with valid VPN user credentials could exploit this vulnerability by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of the affected device.

INFO

Published Date :

2025-09-25T16:12:14.308Z

Last Modified :

2026-02-26T17:47:58.577Z

Source :

cisco
AFFECTED PRODUCTS

The following products are affected by CVE-2025-20333 vulnerability.

Vendors Products
Cisco
  • Adaptive Security Appliance Software
  • Firepower Threat Defense
  • Firepower Threat Defense Software
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-20333.

URL Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-z5xP8EUB cve-icon cve-icon
https://sec.cloudapps.cisco.com/security/center/resources/asa_ftd_continued_attacks cve-icon cve-icon
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-20333 cve-icon cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact