CVE catalog
CVE-2025-49091
Konsole vulnerability
- Severity
- High · CVSS 8.3
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.67% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | konsole | sid | 4:26.08.2-1 | fixed |
| Debian | konsole | forky | 4:26.08.2-1 | fixed |
| Debian | konsole | trixie | 4:25.04.2-1 | fixed |
| Debian | konsole | bookworm | 4:22.12.3-1+deb12u1 | fixed |
| Debian | konsole | bookworm-security | 4:22.12.3-1+deb12u1 | fixed |
| Ubuntu | konsole | noble | 4:22.12.3-1+deb12u1 | fixed |
| Ubuntu | konsole | noble | 4:23.08.5-0ubuntu4+esm1 | fixed |
| Ubuntu | konsole-kpart | noble | 4:23.08.5-0ubuntu4+esm1 | fixed |
| Ubuntu | konsole | pro | 4:23.08.1-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.2-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.3-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.4-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.4-0ubuntu2 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu2 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu3 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu4 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu4+esm1 | fixed |
| Ubuntu | konsole | pro | 4:23.08.1-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.2-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.3-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.4-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.4-0ubuntu2 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu1 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu2 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu3 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu4 | vulnerable |
| Ubuntu | konsole | pro | 4:23.08.5-0ubuntu4+esm1 | fixed |
| Ubuntu | konsole | 25.10 | 4:24.12.3-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.04.0-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.04.1-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.04.2-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.04.2-1ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.04.3-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.07.80-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.07.90-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.08.0-0ubuntu1 | vulnerable |
| Ubuntu | konsole | 25.10 | 4:25.08.1-0ubuntu1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | konsole | source | sid | 4:25.04.0-2 | not yet assigned | Not reported | [1107672] |
| Debian | konsole | source | forky | 4:25.04.0-2 | not yet assigned | Not reported | [1107672] |
| Debian | konsole | source | trixie | 4:25.04.0-2 | not yet assigned | Not reported | [1107672] |
| Debian | konsole | source | bookworm | 4:22.12.3-1+deb12u1 | not yet assigned | Not reported | [1107672] |
| Ubuntu | konsole | deb | noble | 4:22.12.3-1+deb12u1 | Not reported | Not reported | Not reported |
| Ubuntu | konsole | deb | noble | 4:23.08.5-0ubuntu4+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | konsole-kpart | deb | noble | 4:23.08.5-0ubuntu4+esm1 | Not reported | Not reported | Not reported |
| Ubuntu | konsole | deb | pro | 4:23.08.5-0ubuntu4+esm1 | Not reported | USN-8752-1 | Not reported |
| Ubuntu | konsole | deb | pro | 4:23.08.5-0ubuntu4+esm1 | Not reported | UBUNTU-CVE-2025-49091 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [konsole]Fixed
Details (4)
4:22.12.3-1+deb12u1· amd64 · bookwormFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· arm64 · bookwormFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
- [konsole-kpart]Fixed
Source package: [konsole]
Details (4)
4:22.12.3-1+deb12u1· amd64 · bookwormFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· arm64 · bookwormFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
4:22.12.3-1+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4:22.12.3-1+deb12u1usn · konsole · debian · bookworm; usn · konsole · debian · 12
[Debian 13 (Trixie)]
- [konsole]Fixed
Details (2)
4:25.04.2-1· amd64 · trixieFixed · Fixed:
4:25.04.0-2usn · konsole · debian · 13
4:25.04.2-1· arm64 · trixieFixed · Fixed:
4:25.04.0-2usn · konsole · debian · 13
- [konsole-kpart]Fixed
Source package: [konsole]
Details (2)
4:25.04.2-1· amd64 · trixieFixed · Fixed:
4:25.04.0-2usn · konsole · debian · 13
4:25.04.2-1· arm64 · trixieFixed · Fixed:
4:25.04.0-2usn · konsole · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2025_12346.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-49091]
- [https://osv.dev/vulnerability/DLA-4220-1]
- [https://osv.dev/vulnerability/DSA-5945-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-49091]
- [https://osv.dev/vulnerability/USN-8752-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-49091]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-49091.json]
- [https://ubuntu.com/security/notices/USN-8752-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-1258.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]