CVE-2021-40449

critical-risk
Published 2021-10-13

Win32k Elevation of Privilege Vulnerability

Do I need to act?

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91.7% chance of exploitation in next 30 days
EPSS score — higher than 8% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (20)

Affected Vendors

Microsoft

References (5)

Exploit http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-L...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4044...
Exploit http://packetstormsecurity.com/files/164926/Win32k-NtGdiResetDC-Use-After-Free-L...
Patch https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-4044...
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-...
71
/ 100
critical-risk
Severity 24/34 · High
Exploitability 27/34 · High
Exposure 20/34 · Moderate