CVE-2021-38639

Win32k Elevation of Privilege Vulnerability

Win32k Elevation of Privilege Vulnerability

Affected

Microsoft · Windows 10 Version 1507 · Windows 10 Version 1607 · Windows 10 Version 1809 · Windows 10 Version 1909 · Windows 10 Version 2004 · Windows 10 Version 20H2

CVSS v3.1 NVD

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.36% chance of exploitation in the next 30 days, 71st percentile

Published

2021-09-15

Updated

2026-08-10

Proof-of-concept exploits (1)

• DarkSprings/CVE-2021-386390★ · 2021-09-17

Security advisories

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-38639

References

• CVE Record
• NVD entry

Related

• CVE-2021-38666
• CVE-2021-40444
• CVE-2021-40539
• CVE-2021-42321
• CVE-2021-43267