CVE-2025-34023: Karel IP Phone IP1211

High severity, CVSS 8.5. EPSS: 1.6% chance of exploitation in the next 30 days.

A path traversal vulnerability exists in the Karel IP1211 IP Phone's web management panel. The /cgi-bin/cgiServer.exx endpoint fails to properly sanitize user input to the page parameter, allowing remote authenticated attackers to access arbitrary files on the underlying system by using crafted path traversal sequences. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-02 UTC.

Affected products

• Karel Karel IP Phone IP1211: any version

Published 2025-06-20. Last modified 2026-09-30.