🛡️ CVE-2023-40551
🟡 CVSS 5.1 — Medium ✅ No Known Exploit CWE-125 NVD
5.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A flaw was found in the MZ binary format in Shim. An out-of-bounds read may occur, leading to a crash or possible exposure of sensitive data during the system's boot phase.

Details

Severity MEDIUM
CVSS Score 5.1
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H
CWE CWE-125
Public Exploit ✅ No
Source NVD
Published 2024-01-29
Updated 2026-06-08
Modified 2024-11-21
Fix URL N/A

Affected Packages

Software From version Fixed in
enterprise-linux
fedora
shim 15.8

References

Issue Tracking, Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2259918
Issue Tracking, Vendor Advisory https://bugzilla.redhat.com/show_bug.cgi?id=2259918

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