CVE-2025-20345

Medium

Description

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. 

SeverityMedium
CVSS4.9
Exploit probability—
ProductCisco Duo Authentication Proxy
PublishedAug 20, 2025
First seenAug 20, 2025

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Cisco Cisco Duo Authentication Proxy2.4.2, 2.4.3, 2.4.4, 2.4.5, 2.4.6, 2.4.7, 2.4.8, 2.4.9, 2.4.10, 2.4.11, 2.4.12, 2.4.13, 2.4.14, 2.4.14.1, 2.4.15, 2.4.16, 2.4.17, 2.4.18, 2.4.19, 2.4.20, 2.4.21, 2.5.4, 2.6.0, 2.7.0, 2.8.1, 2.9.0, 2.10.0, 2.10.1, 2.11.0, 2.12.0, 2.12.1, 2.13.0, 2.14.0, 3.0.0, 3.1.0, 3.1.1, 3.2.0, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 4.0.0, 4.0.1, 4.0.2, 5.0.0, 5.0.1, 5.0.2, 5.1.0, 5.1.1, 5.2.0, 5.2.1, 5.2.2, 5.3.0, 5.3.1, 5.4.0, 5.4.1, 5.5.0, 5.5.1, 5.6.0, 5.6.1, 5.7.0, 5.7.1, 5.7.2, 5.7.3, 5.7.4, 5.8.0, 5.8.1, 6.0.0—

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