{"id":"CVE-2025-15561","aliases":["EUVD-2025-207636","GHSA-6x8c-24f7-p33h"],"status":"published","title":"Local Privilege Escalation in NesterSoft WorkTime","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.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-11","score":0.0012,"percentile":0.01862,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2026-02-19T10:53:18Z","modified":"2026-06-17T08:38:01Z","products":[{"vendor":"nestersoft","product":"worktime"},{"vendor":"nestersoft inc.","product":"worktime (on-prem/cloud)"}],"references":[{"url":"https://r.sec-consult.com/worktime","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15561"},{"url":"https://github.com/advisories/GHSA-6x8c-24f7-p33h"}],"sources":{"cve":[{"id":"CVE-2025-15561","title":"Local Privilege Escalation in NesterSoft WorkTime","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.","status":"published","published":"2026-02-19T10:53:18.501Z","modified":"2026-02-23T18:26:47.903Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:32:37.351404Z"}],"euvd":[{"id":"EUVD-2025-207636","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.","status":"published","published":"2026-02-19T10:53:18Z","modified":"2026-02-23T18:26:47Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T19:48:32.158773Z"}],"ghsa":[{"id":"GHSA-6x8c-24f7-p33h","title":"An attacker can exploit the update behavior of the WorkTime monitoring daemon to elevate...","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.","status":"published","published":"2026-02-19T18:31:54Z","modified":"2026-02-23T21:31:24Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T15:06:20.459119Z"}],"nvd":[{"id":"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.","status":"published","published":"2026-02-19T11:15:56.727Z","modified":"2026-06-17T08:38:01.85Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:12:00.273026Z"}]}}