CVE-2025-20363

Basic Information

CVE State

PUBLISHED

Reserved Date

October 10, 2024

Published Date

September 25, 2025

Last Updated

February 26, 2026

Vendor

Cisco

Product

IOS, Cisco IOS XR Software, Cisco Adaptive Security Appliance (ASA) Software, Cisco IOS XE Software, Cisco Firepower Threat Defense Software

Description

A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, remote attacker (Cisco ASA and FTD Software) or authenticated, remote attacker (Cisco IOS, IOS XE, and IOS XR Software) with low user privileges to execute arbitrary code on an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web service on an affected device after obtaining additional information about the system, overcoming exploit mitigations, or both. A successful exploit could allow the attacker to execute arbitrary code as root, which may lead to the complete compromise of the affected device. For more information about this vulnerability, see the Details ["#details"] section of this advisory.

CVSS Scores

SSVC Information

Exploitation

none

Technical Impact

total

Exploit Status

Exploited in the Wild

Yes (2025-09-26 11:08:58 UTC) Source