CVE-2025-20362

Analyzed

Published: 25 Sept 2025, 16:15

Last modified:26 Sept 2025, 19:26

Vulnerability Summary

Overall Risk

High Risk

57/100

CVSS Score

6.5 MEDIUM

v3.1

EPSS Score

7.37% MEDIUM

91%ile 0.00%

CISA KEV

Active

Ransomware

Known Use

Exploits

None found

Dark Web

Not detected

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 unauthenticated, remote attacker to access restricted URL endpoints that are related to remote access VPN that should otherwise be inaccessible without authentication. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on a device. A successful exploit could allow the attacker to access a restricted URL without authentication.

Source Identifier: psirt@cisco.com

CVSS	Source	Severity	Exploitability	Impact	Vector
v4.0	n/a
v3.1	psirt@cisco.com	6.5 MEDIUM	3.9	2.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L...
v3.0	n/a
v2.0	n/a

7.37%

Current Score

0.00%

91%ile

Percentile Rank

0.00%

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Missing Authorization CWE-862

Description:The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Vulnerability Name:Cisco Secure Firewall Adaptive Security (ASA) Appliance and Secure Firewall Threat Defense (FTD) Missing Authorization Vulnerability

Added to CISA Catalog:25 Sept 2025, 00:00

Action Due:26 Sept 2025, 00:00

Known Ransomware: Ransomware

Required Action:The KEV due date refers to the deadline by which FCEB agencies are expected to review and begin implementing the guidance outlined in Emergency Directive (ED) 25-03 (URL listed below in Notes). Agencies must follow the mitigation steps provided by CISA (URL listed below in Notes) and vendor’s instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.

No dark web activity detected for this vulnerability.

No known public exploit code indexed (as of 26 Sept 2025, 19:26).

Exploitation status can change quickly once PoC code appears.