CVE-2021-36934

תיאור (מקור, אנגלית)

<p>An elevation of privilege vulnerability exists because of overly permissive Access Control Lists (ACLs) on multiple system files, including the Security Accounts Manager (SAM) database. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.</p> <p>An attacker must have the ability to execute code on a victim system to exploit this vulnerability.</p> <p>After installing this security update, you <em>must</em> manually delete all shadow copies of system files, including the SAM database, to fully mitigate this vulnerabilty. <strong>Simply installing this security update will not fully mitigate this vulnerability.</strong> See <a href="https://support.microsoft.com/topic/1ceaa637-aaa3-4b58-a48b-baf72a2fa9e7">KB5005357- Delete Volume Shadow Copies</a>.</p>

מדדים

CVSS 3.1

7.8 (HIGH) מקור הציון: CNA CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — סבירות ניצול

67% (אחוזון 100) נכון ל-25/7/2026

מוצרים מושפעים

microsoft: windows 10 1809; microsoft: windows 10 1909; microsoft: windows 10 2004; microsoft: windows 10 20h2; microsoft: windows 10 21h1

קישורים

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36‮… PatchVendor Advisory
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-36‮… PatchVendor Advisory
• http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html Third Party AdvisoryVDB Entry
• http://packetstormsecurity.com/files/164006/HiveNightmare-AKA-SeriousSAM.html Third Party AdvisoryVDB Entry
• https://www.kb.cert.org/vuls/id/506989 Third Party Advisory
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-202‮… US Government Resource