{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "WorkTime (on-prem/cloud)",
          "vendor": "NesterSoft Inc.",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c= 11.8.8"
            }
          ]
        }
      ],
      "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"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eAn 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\u0026nbsp; 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.\u003cbr\u003e\u003cbr\u003e\u003c/p\u003e"
            }
          ],
          "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\u00a0 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."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-233",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-233 Privilege Escalation"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-269",
              "description": "CWE-269 Improper Privilege Management",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-19T10:53:18.501Z",
        "orgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
        "shortName": "SEC-VLab"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://r.sec-consult.com/worktime"
        }
      ],
      "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.\u003cbr\u003e"
            }
          ],
          "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"
      },
      "title": "Local Privilege Escalation in NesterSoft WorkTime",
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "551230f0-3615-47bd-b7cc-93e92e730bbf",
    "assignerShortName": "SEC-VLab",
    "cveId": "CVE-2025-15561",
    "datePublished": "2026-02-19T10:53:18.501Z",
    "dateReserved": "2026-02-04T07:44:34.747Z",
    "dateUpdated": "2026-02-19T10:53:18.501Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-15561\",\"sourceIdentifier\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"published\":\"2026-02-19T11:15:56.727\",\"lastModified\":\"2026-02-19T15:52:39.260\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"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\u00a0 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.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-269\"}]}],\"references\":[{\"url\":\"https://r.sec-consult.com/worktime\",\"source\":\"551230f0-3615-47bd-b7cc-93e92e730bbf\"}]}}"
  }
}