{"id":"CVE-2025-15561","state":"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.","publishedAt":"2026-02-19T10:53:18.501Z","updatedAt":"2026-02-23T18:26:47.903Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"SEC-VLab","products":["NesterSoft Inc. WorkTime (on-prem/cloud)"],"affected":[{"vendor":"NesterSoft Inc.","product":"WorkTime (on-prem/cloud)","defaultStatus":"unknown","versions":[{"version":"<= 11.8.8","status":"affected"}]}],"references":["https://r.sec-consult.com/worktime"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:08:31.050Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/15xxx/CVE-2025-15561.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-15561","state":"PUBLISHED","datePublished":"2026-02-19T10:53:18.501Z","dateUpdated":"2026-02-23T18:26:47.903Z","assignerShortName":"SEC-VLab","assignerOrgId":"551230f0-3615-47bd-b7cc-93e92e730bbf","dateReserved":"2026-02-04T07:44:34.747Z"},"containers":{"cna":{"title":"Local Privilege Escalation in NesterSoft WorkTime","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"NesterSoft Inc.","product":"WorkTime (on-prem/cloud)","defaultStatus":"unknown","versions":[{"version":"<= 11.8.8","status":"affected"}]}],"references":[{"url":"https://r.sec-consult.com/worktime","tags":["third-party-advisory"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"SEC-VLab","orgId":"551230f0-3615-47bd-b7cc-93e92e730bbf","dateUpdated":"2026-02-19T10:53:18.501Z"},"credits":[{"lang":"en","type":"finder","value":"Tobias Niemann, SEC Consult Vulnerability Lab"},{"lang":"en","type":"finder","value":"Daniel Hirschberger, SEC Consult Vulnerability Lab"},{"lang":"en","type":"finder","value":"Thorger Jansen, SEC Consult Vulnerability Lab"},{"lang":"en","type":"finder","value":"Marius Renner, SEC Consult Vulnerability Lab"}],"impacts":[{"capecId":"CAPEC-233","descriptions":[{"lang":"en","value":"CAPEC-233 Privilege Escalation"}]}],"solutions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"The vendor did not respond to our communication attempts anymore. It is currently as of February 2026 unclear, whether a patch is available. Please contact the vendor to request a patch for the identified critical security issues.<br>"}],"value":"The vendor did not respond to our communication attempts anymore. It is currently as of February 2026 unclear, whether a patch is available. Please contact the vendor to request a patch for the identified critical security issues."}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-02-23T18:26:10.960311Z","id":"CVE-2025-15561","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-23T18:26:47.903Z"}}]}}}