Inclusion of Sensitive Information in Log Files in Catalyst SD-WAN Manager (formerly SD-WAN vManage) - CVE-2026-20209
Published: May 14, 2026
Vulnerability identifier: #VU131452
CSH Severity: Low
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-20209
CWE-ID: CWE-532
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to escalate privileges.
The vulnerability exists due to insertion of sensitive information into log files in the web UI when recording audit logs. A remote user can leverage sensitive session information in audit logs to escalate privileges.
The issue requires read-only permissions.
Affected software
Catalyst SD-WAN Manager (formerly SD-WAN vManage)
How to mitigate CVE-2026-20209
Install security update from vendor's website.
Catalyst SD-WAN Manager (formerly SD-WAN vManage) - addressed in versions 20.15.4.3, 20.15.5.1, 20.18.2.2, 26.1.1