SB20251210176 - Uncleared password keystrokes in circular queue in edk2
Published: December 10, 2025
Security Bulletin ID
SB20251210176
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2024-38798)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to password keystrokes are stored in a circular queue, which is not cleared after password entry. A local user can examine the memory used as the circular queue and recover a previously entered password.
Remediation
Install update from vendor's website.