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CVE-2026-33840 Win32k Elevation of Privilege Vulnerability

🗓️ 12 May 2026 16:58:19Reported by microsoftType 
cvelist
 cvelist
🔗 www.cve.org👁 30 Views

CVE-2026-33840 is a Win32k elevation of privilege vulnerability.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2026-33840
12 May 202615:52
circl
CNNVD
Microsoft Win32k 资源管理错误漏洞
12 May 202600:00
cnnvd
CVE
CVE-2026-33840
12 May 202616:58
cve
EUVD
EUVD-2026-29586
12 May 202618:30
euvd
Microsoft KB
May 12, 2026—Hotpatch KB5087423 (OS Build 26100.32772)
9 Jun 202614:00
mskb
Microsoft KB
May 12, 2026—KB5087539(OS Build 26100.32860)
9 Jun 202614:00
mskb
Microsoft KB
May 12, 2026—KB5089548 (OS Build 28000.2113)
9 Jun 202614:00
mskb
Microsoft CVE
Win32k Elevation of Privilege Vulnerability
12 May 202614:00
mscve
NCSC
Vulnerabilities in Microsoft Windows
2 Jun 202611:33
ncsc
NVD
CVE-2026-33840
12 May 202618:17
nvd
Rows per page
[
  {
    "vendor": "Microsoft",
    "product": "Windows 11 Version 24H2",
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.8457",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 Version 25H2",
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26200.0",
        "lessThan": "10.0.26200.8457",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows 11 version 26H1",
    "platforms": [
      "ARM64-based Systems",
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.28000.0",
        "lessThan": "10.0.28000.2113",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2025",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.32860",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  },
  {
    "vendor": "Microsoft",
    "product": "Windows Server 2025 (Server Core installation)",
    "platforms": [
      "x64-based Systems"
    ],
    "versions": [
      {
        "version": "10.0.26100.0",
        "lessThan": "10.0.26100.32860",
        "versionType": "custom",
        "status": "affected"
      }
    ]
  }
]

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09 Jun 2026 19:34Current
CVSS 3.17.8
EPSS0.00076
30