Information disclosure in Cisco Duo Authentication Proxy
CVE-2025-20345
A vulnerability in the debug logging function of Cisco Duo Authentication Proxy could allow an authenticated, high-privileged, remote attacker to view sensitive information in a system log file. This vulnerability is due to insufficient masking of sensitive information before it is written to system log files. An attacker could exploit this vulnerability by accessing logs on an affected system. A successful exploit could allow the attacker to view sensitive information that should be restricted.
Vulnerability class: Information Disclosure
EPSS: 0.005 (38.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Cisco Duo Authentication Proxy — versions 2.4.2, 2.4.3, 2.4.4
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2025-20345?
- CVE-2025-20345 is a medium-severity vulnerability in Cisco Duo Authentication Proxy, classified under Information Disclosure. CVSS score: 4.9/10. Published 2025-08-20.
- How severe is CVE-2025-20345?
- Medium severity. CVSS v3 base score is 4.9 out of 10.