CVE-2024-21338 · netVigilance record NV24-0031
Microsoft Windows Kernel Exposed IOCTL with Insufficient Access Control
past due ransomware
What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA deadline 2024-03-25 · passed 2 years 5 months ago · applies to US federal civilian agencies; used elsewhere as a reference SLA
What happened
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.
Who is affected
Microsoft Windows. Affected version ranges are listed in the vendor advisory and the NVD entry linked under Sources.
Weakness class: CWE-822.
Timeline
- Added to CISA KEVExploitation in the wild confirmed by CISA
- CISA remediation deadlinepassed 2 years 5 months ago
Sources
- NVD entry for CVE-2024-21338 nvd.nist.gov/vuln/detail/CVE-2024-21338
- CISA Known Exploited Vulnerabilities catalog www.cisa.gov/known-exploited-vulnerabilities-catalog
- msrc.microsoft.com msrc.microsoft.com/update-guide/vulnerability/CVE-2024-21338
- nvd.nist.gov nvd.nist.gov/vuln/detail/CVE-2024-21338