CVE-2025-20333
A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense...
Basic Information
- CVE State
- PUBLISHED
- Reserved Date
- October 10, 2024
- Published Date
- September 25, 2025
- Last Updated
- February 26, 2026
- Vendor
- Cisco
- Product
- Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software
- 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.
- Tags
- Exploitation
- active
- Technical Impact
- total
- Exploited in the Wild
- Yes (2026-06-01 10:41:10 UTC) Source
cisa
CVSS Scores
CVSS v3.1
9.9 - CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC Information
Exploit Status
Known Exploited Vulnerability Information
| Source | Added Date |
|---|---|
| CVE | 2026-06-01 10:41:10 UTC |
Timeline
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CVE ID Reserved
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CVE Published to Public
-
Added to KEVIntel