FKIE_CVE-2025-15561

Vulnerability from fkie_nvd - Published: 2026-02-19 11:15 - Updated: 2026-02-26 02:58
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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.
References
551230f0-3615-47bd-b7cc-93e92e730bbfhttps://r.sec-consult.com/worktimeThird Party Advisory
Impacted products
Vendor Product Version
nestersoft worktime *
nestersoft worktime *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nestersoft:worktime:*:*:*:*:cloud:*:*:*",
              "matchCriteriaId": "F8A53FE8-6F29-462D-B7EB-C3E4F25DBEC3",
              "versionEndIncluding": "11.8.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:nestersoft:worktime:*:*:*:*:on-premise:*:*:*",
              "matchCriteriaId": "0A831FDF-1B71-48B4-BA2D-D2EFB151161A",
              "versionEndIncluding": "11.8.8",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "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."
    },
    {
      "lang": "es",
      "value": "Un atacante puede explotar el comportamiento de actualizaci\u00f3n del demonio de monitoreo WorkTime para elevar privilegios en el sistema local a NT Authority\\SYSTEM. Un ejecutable malicioso debe llamarse WTWatch.exe y ser colocado en el directorio C:\\ProgramData\\wta\\ClientExe, que es escribible por \u0027Todos\u0027. El ejecutable ser\u00e1 entonces ejecutado por el demonio de monitoreo WorkTime."
    }
  ],
  "id": "CVE-2025-15561",
  "lastModified": "2026-02-26T02:58:45.617",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-02-19T11:15:56.727",
  "references": [
    {
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://r.sec-consult.com/worktime"
    }
  ],
  "sourceIdentifier": "551230f0-3615-47bd-b7cc-93e92e730bbf",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ],
      "source": "551230f0-3615-47bd-b7cc-93e92e730bbf",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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