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01 Record

CVE-2026-41527

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

MediumPUBLISHEDCNA: mitre
CNA base score6.9 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

02 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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.11% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 1.4% of scored records. A rank, not a probability.
NVD base score
6.9 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-26.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-04-21 00:00Z6 MO AGO
Last updated
2026-04-22 15:35Z6 MO AGO
Reserved
2026-04-20
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Medium (CVSS 6.9)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Weaknesses
  • CWE-670Always-Incorrect Control Flow ImplementationClass
Data version
5.2
Document digest
7f8d539b2c5ae63f612a990470131cfe8d4b6797d0461b8932d580d18a330eb5

05 Affected products

VendorProductVersionsPlatforms
KDEKleopatra0 to < 26.08.0Windows

06 References