Firetruck

CVE-2024-21338

KEV · Ransomware
Updated Aug 10, 2026 · PUBLISHED
View KEV entry →

Description

Microsoft Windows Kernel contains an exposed IOCTL with insufficient access control vulnerability within the IOCTL (input and output control) dispatcher in appid.sys that allows a local attacker to achieve privilege escalation.

Full record on cve.org →

Affected packages

PackageVendor / ProductVersion rangeStatus
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.0, < 10.0.17763.5458affected
Windows 10 Version 1809Microsoft / Windows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.5458affected
Windows 10 Version 21H2Microsoft / Windows 10 Version 21H2>= 10.0.19043.0, < 10.0.19044.4046affected
Windows 10 Version 22H2Microsoft / Windows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.4046affected
Windows 11 version 21H2Microsoft / Windows 11 version 21H2>= 10.0.0, < 10.0.22000.2777affected
Windows 11 version 22H2Microsoft / Windows 11 version 22H2>= 10.0.22621.0, < 10.0.22621.3155affected
Windows 11 version 22H3Microsoft / Windows 11 version 22H3>= 10.0.22631.0, < 10.0.22631.3155affected
Windows 11 Version 23H2Microsoft / Windows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.3155affected
Windows Server 2019Microsoft / Windows Server 2019>= 10.0.17763.0, < 10.0.17763.5458affected
Windows Server 2019 (Server Core installation)Microsoft / Windows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.5458affected
Windows Server 2022Microsoft / Windows Server 2022>= 10.0.20348.0, < 10.0.20348.2322affected
Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)>= 10.0.25398.0, < 10.0.25398.709affected