CVE-2025-49091

high

Description

KDE Konsole before 25.04.2 allows remote code execution in a certain scenario. It supports loading URLs from the scheme handlers such as a ssh:// or telnet:// or rlogin:// URL. This can be executed regardless of whether the ssh, telnet, or rlogin binary is available. In this mode, there is a code path where if that binary is not available, Konsole falls back to using /bin/bash for the given arguments (i.e., the URL) provided. This allows an attacker to execute arbitrary code.

References

https://www.openwall.com/lists/oss-security/2025/06/10/5

https://proofnet.de/publikationen/konsole_rce.html

https://konsole.kde.org/changelog.html

https://kde.org/info/security/advisory-20250609-1.txt

https://invent.kde.org/utilities/konsole/-/tags

https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327b5642a2b75

Details

Source: Mitre, NVD

Published: 2025-06-11

Updated: 2025-06-12

Risk Information

CVSS v2

Base Score: 7.3

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:P

Severity: High

CVSS v3

Base Score: 8.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L

Severity: High

EPSS

EPSS: 0.00119