Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://invent.kde.org/utilities/konsole/-/commit/09d20dea109050b4c02fb73095f327
- https://invent.kde.org/utilities/konsole/-/tags
- https://kde.org/info/security/advisory-20250609-1.txt
- https://konsole.kde.org/changelog.html
- https://proofnet.de/publikationen/konsole_rce.html
- https://www.openwall.com/lists/oss-security/2025/06/10/5
- https://lists.debian.org/debian-lts-announce/2025/06/msg00019.html
FAQ
What is CVE-2025-49091?
CVE-2025-49091 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 re...
How severe is CVE-2025-49091?
CVE-2025-49091 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-49091?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.