CVE-2025-49091

Publication date 11 June 2025

Last updated 14 September 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

8.2 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
konsole 26.04 LTS resolute
Not affected
25.10 questing Ignored end of life, was needs-triage
25.04 plucky Ignored end of life, was needs-triage
24.10 oracular Ignored end of life, was needs-triage
24.04 LTS noble
Fixed 4:23.08.5-0ubuntu4+esm1
22.04 LTS jammy
Fixed 4:21.12.3-0ubuntu1+esm1
20.04 LTS focal
Fixed 4:19.12.3-0ubuntu1+esm1
18.04 LTS bionic
Fixed 4:17.12.3-1ubuntu1+esm1
16.04 LTS xenial
Fixed 4:15.12.3-0ubuntu1+esm1

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Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.2 · High

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L

References

Related Ubuntu Security Notices (USN)

    • USN-8752-1
    • Konsole vulnerability
    • 14 September 2026

Other references

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