High severity7.8NVD Advisory· Published Feb 19, 2026· Updated Jun 17, 2026
CVE-2025-15561
CVE-2025-15561
Description
An attacker can exploit the update behavior of the WorkTime monitoring daemon to elevate privileges on the local system to NT Authority\SYSTEM. A malicious executable must be named WTWatch.exe and dropped in the C:\ProgramData\wta\ClientExe directory, which is writable by "Everyone". The executable will then be run by the WorkTime monitoring daemon.
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Affected products
4cpe:2.3:a:nestersoft:worktime:*:*:*:*:cloud:*:*:*+ 1 more
- cpe:2.3:a:nestersoft:worktime:*:*:*:*:cloud:*:*:*range: <=11.8.8
- cpe:2.3:a:nestersoft:worktime:*:*:*:*:on-premise:*:*:*range: <=11.8.8
- Range: <= 11.8.8
Patches
Vulnerability mechanics
References
1- r.sec-consult.com/worktimenvdThird Party Advisory
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