MEDIUM
CVE-2026-41527
CWE-670Published: April 21, 2026· Updated: Apr 22, 2026
6.9
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.8th
Official 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.
Technical Analysis
CVE-2026-41527 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 6.9.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityLow
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
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GitHub PoC Search
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Rapid7 / Metasploit
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PacketStorm
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NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
All References (3)
Quick Facts
CVE IDCVE-2026-41527
CVSS Score6.9 / 10
SeverityMEDIUM
WeaknessCWE-670
CISA KEVNo
EPSS (30d)0.01%
PublishedApr 21, 2026
Related CVEs (CWE-670)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-41527 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.