CVE-2025-20345 Cisco Duo Authentication Proxy Information Disclosure Vulnerability

Medium 4.9 Published Updated

High-privileged attackers can view sensitive information in system logs due to insufficient masking in Cisco Duo Authentication Proxy.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-20345?

CVE-2025-20345 is a medium-severity vulnerability in Cisco Duo Authentication Proxy, published on 20 Aug 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official 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. 

Weakness: CWE-200

Which versions are affected by CVE-2025-20345?

How do I fix CVE-2025-20345?

No fix has been published for CVE-2025-20345 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-20345 being exploited?

There is no known exploitation of CVE-2025-20345 in the wild and no public exploit code.

Sources

Also known as GHSA-xrhj-pq48-gcwm.

Is CVE-2025-20345 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free