🛡️ CVE-2023-4693
🟡 CVSS 5.3 — Medium ⚠️ Exploit Public CWE-125 NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

An out-of-bounds read flaw was found on grub2's NTFS filesystem driver. This issue may allow a physically present attacker to present a specially crafted NTFS file system image to read arbitrary memory locations. A successful attack allows sensitive data cached in memory or EFI variable values to be leaked, presenting a high Confidentiality risk.

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N
CWE CWE-125
Public Exploit ⚠️ Yes
Source NVD
Published 2023-10-25
Updated 2026-06-08
Modified 2025-11-04
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux
grub2 2.12

References

Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2238343
Mailing List, Third Party Advisory https://seclists.org/oss-sec/2023/q4/37
Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2238343
Mailing List, Third Party Advisory https://seclists.org/oss-sec/2023/q4/37

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