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CVE-2021-33771

high · 7.8Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2021-11-03Remediation due 2021-11-17

Windows Kernel Elevation of Privilege Vulnerability

7.8
CVSS
10.2%
EPSS (exploit prob.)
95th
EPSS percentile
2021-07-14
Published

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

Affected products

VendorProductAffected versions
microsoftwindows_10_1507< 10.0.10240.19003
microsoftwindows_10_1607< 10.0.14393.4530
microsoftwindows_10_1809< 10.0.17763.2061
microsoftwindows_10_1909< 10.0.18363.1679
microsoftwindows_10_2004< 10.0.19041.1110
microsoftwindows_10_20h2< 10.0.19042.1110
microsoftwindows_10_21h1< 10.0.19043.1110
microsoftwindows_8.1all versions
microsoftwindows_rt_8.1all versions
microsoftwindows_server_2004< 10.0.19041.1110
microsoftwindows_server_2012all versions
microsoftwindows_server_2016< 10.0.14393.4530
microsoftwindows_server_2019< 10.0.17763.2061
microsoftwindows_server_20h2< 10.0.19042.1110

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-33771