CVE-2025-20345
Cisco Duo Authentication Proxy Information Disclosure Vulnerability
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
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Duo | Identity / IAM / MFA | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Duo Authentication Proxy
Vendor advisory
Cisco Duo Authentication Proxy Information Disclosure Vulnerability
Cisco’s rating: Medium (advisory CVSS 4.9) · Published Aug 20, 2025
Bug ID: CSCwq57269
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from