CVE-2025-20345
Cisco Duo Authentication Proxy Information Disclosure Vulnerability
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 4.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
20 Aug 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Affected products
Cisco · Cisco Duo Authentication ProxyReferences
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvd36820https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-authproxlog-SxczXQ63https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-66682