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.

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…

Vulnerability class: Information Disclosure

EPSS: 0.004 (35.8th 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)

CWE-200 — Information Disclosure

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.