CVE-2025-20362

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.

CVSS v3.1

8.6 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

CVSS v3.1

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

87.09% chance of exploitation in the next 30 days, 100th percentile

CISA KEV

added 2025-09-25

Nuclei

medium · CWE-862

Published

2025-09-25

Updated

2026-02-26

Proof-of-concept exploits (1)

• cobbbex/cve-2025-20333

Nuclei templates (1)

• projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-20362.yaml

References

• CVE Record
• NVD entry

Related

• CVE-2025-20333
• CVE-2025-2036
• CVE-2025-2037
• CVE-2025-20352
• CVE-2025-2038
• CVE-2025-2035