CVE-2024-21338: Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control
This Microsoft advisory covers CVE-2024-21338 in Windows Server 2019 (Server Core installation) and Windows Server 2022, 23H2 Edition (Server Core installation).
- CVE-2024-21338
Key facts
- Vendor rating
- High, CVSS 7.8
- CISA KEV
- Listed ; federal due date ; ransomware use known to CISA
- Affected
- Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.5458; Windows 10 Version 1809 10.0.0 before 10.0.17763.5458; Windows Server 2019 10.0.17763.0 before 10.0.17763.5458 and 9 more below
- Fixed in
- 10.0.17763.5458, 10.0.20348.2322, 10.0.22000.2777 and 5 more below
- Source published
- Source revised
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
CVE-2024-21338 in the CISA Known Exploited Vulnerabilities catalog
- CISA name:
- Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control Vulnerability
- CISA 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.
- Required action:
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
Windows Kernel Elevation of Privilege Vulnerability
Affected products named by the advisory: Windows Server 2019; Windows Server 2019 (Server Core installation); Windows Server 2022; Windows Server 2022, 23H2 Edition (Server Core installation).
Text from the source record.
- Windows 10 Version 1809 10.0.17763.0 before 10.0.17763.5458
- Windows 10 Version 1809 10.0.0 before 10.0.17763.5458
- Windows Server 2019 10.0.17763.0 before 10.0.17763.5458
- Windows Server 2019 (Server Core installation) 10.0.17763.0 before 10.0.17763.5458
- Windows Server 2022 10.0.20348.0 before 10.0.20348.2322
- Windows 11 version 21H2 10.0.0 before 10.0.22000.2777
- Windows 10 Version 21H2 10.0.19043.0 before 10.0.19044.4046
- Windows 11 version 22H2 10.0.22621.0 before 10.0.22621.3155
- Windows 10 Version 22H2 10.0.19045.0 before 10.0.19045.4046
- Windows 11 version 22H3 10.0.22631.0 before 10.0.22631.3155
- Windows 11 Version 23H2 10.0.22631.0 before 10.0.22631.3155
- Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 before 10.0.25398.709
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2024-21338
Upgrade to a fixed release named by Microsoft:
- 10.0.17763.5458
- 10.0.20348.2322
- 10.0.22000.2777
- 10.0.19044.4046
- 10.0.22621.3155
- 10.0.19045.4046
- 10.0.22631.3155
- 10.0.25398.709
End-of-life dates for Windows Server
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