🛡️ CVE-2026-41527

🟡 CVSS 6.9 — Medium ✅ No Known Exploit CWE-670 NVD
6.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

KDE Kleopatra before 26.08.0 on Windows allows local users to obtain the privileges of a Kleopatra user, because there is an error in the mechanism (KUniqueService) for ensuring that only one instance is running.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability low.

Weakness class

CVE-2026-41527 is classified as CWE-670: Always-Incorrect Control Flow Implementation. The control flow does not do what the logic intends, so a check never has the effect it appears to have.

Affected software

CVE-2026-41527 is recorded against 1 package.

  • unknown

Timeline and source

Published on 21 April 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

commits.kde.org
github.com
kde.org

Details

Severity MEDIUM
CVSS Score 6.9
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE CWE-670
Public Exploit ✅ No
Source NVD
Published 2026-04-21
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown — —

Similar Threats

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