Detections
Analytics
Cisco Secure Firewall Adaptive Security Appliance Software Web Services RCE (cisco-sa-http-code-exec-WmfP3h3O)
critical Nessus Plugin ID 265973
Synopsis
The remote device is missing a vendor-supplied security patchDescription
According to its self-reported version, Cisco Adaptive Security Appliance (ASA) Software is affected by a vulnerability.- 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. (CVE-2025-20363)
Please see the included Cisco BIDs and Cisco Security Advisory for more information.
Solution
Upgrade to the relevant fixed version referenced in Cisco bug IDs CSCwo18850, CSCwo35704, CSCwo35779, CSCwo49562See Also
http://www.nessus.org/u?aded9b88
Plugin Details
Severity: Critical
ID: 265973
File Name: cisco-sa-http-code-exec-WmfP3h3O-asa.nasl
Version: 1.1
Type: local
Family: CISCO
Published: 9/26/2025
Updated: 9/26/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.2
CVSS v2
Risk Factor: High
Base Score: 7.6
Temporal Score: 5.6
Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2025-20363
CVSS v3
Risk Factor: Critical
Base Score: 9
Temporal Score: 7.8
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:cisco:adaptive_security_appliance_software
Required KB Items: Host/Cisco/ASA/model
Patch Publication Date: 9/25/2025
Vulnerability Publication Date: 9/25/2025
Reference Information
CVE: CVE-2025-20363