CVE-2025-49091

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.

Published: 2025-06-11 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-49091 is rated Moderate Risk (58.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.75%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-49091

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-19 0.63% 0.75% +0.12%
2 2026-04-07 0.16% 0.63% +0.46%
3 2026-01-05 — 0.16% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-49091

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.2 3.1 HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.6 6.0 [email protected]

Weakness enumeration for CVE-2025-49091

OS Trackers for CVE-2025-49091

vendor priority summary link
alpine high CVE-2025-49091: 1 source package rows (konsole); 8 state rows across 2 repos (3.22-community, edge-community); fixed 0, open 8. https://security.alpinelinux.org/vuln/CVE-2025-49091
debian not yet assigned CVE-2025-49091 not yet assigned priority: Debian including 1 source packages (konsole), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2025-49091
gentoo high CVE-2025-49091: 1 GLSA(s) (202506-13), 1 atom(s) (kde-apps/konsole); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2025-49091
redhat high — https://access.redhat.com/security/cve/CVE-2025-49091
ubuntu medium CVE-2025-49091 medium priority: Ubuntu including 1 source packages (konsole), 9 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream, xenial): needs-triage 6, ignored 2, released 1. https://ubuntu.com/security/CVE-2025-49091

Affected software / configurations for CVE-2025-49091

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-49091

cvelogic Threat Intelligence