{
  "id": "CVE-2021-25261",
  "sourceIdentifier": "browser-security@yandex-team.ru",
  "published": "2022-06-15T20:15:17.093",
  "lastModified": "2022-06-24T16:41:44.597",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "Local privilege vulnerability in Yandex Browser for Windows prior to 22.5.0.862 allows a local, low privileged, attacker to execute arbitary code with the SYSTEM privileges through manipulating symlinks to installation file during Yandex Browser update process."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de privilegios locales en Yandex Browser para Windows versiones anteriores a 22.5.0.862 permite a un atacante local, con pocos privilegios, ejecutar c\u00f3digo arbitrario con los privilegios del SISTEMA a trav\u00e9s de la manipulaci\u00f3n de enlaces simb\u00f3licos al archivo de instalaci\u00f3n durante el proceso de actualizaci\u00f3n de Yandex Browser"
    }
  ],
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          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
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        "exploitabilityScore": 1.8,
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          "accessVector": "LOCAL",
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          "authentication": "NONE",
          "confidentialityImpact": "COMPLETE",
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          "baseScore": 7.2
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        "baseSeverity": "HIGH",
        "exploitabilityScore": 3.9,
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        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
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          "lang": "en",
          "value": "CWE-59"
        }
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  "references": [
    {
      "url": "https://yandex.com/bugbounty/i/hall-of-fame-browser/",
      "source": "browser-security@yandex-team.ru",
      "tags": [
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}