PT-2026-4864 · Unknown+1 · Cloverbootloader+1

Titan Team · Published 2026-01-27 · Updated 2026-01-27 · CVE-2026-24795

Positive Technologies (AI Summary)

CVSS v4.0

5.1

Medium

Base vector

AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:U/V:C/RE:L/U:Amber

Name of the Vulnerable Software and Affected Versions CloverBootloader versions prior to 5162

Description An out-of-bounds write issue exists in the CloverBootloader software, specifically within the regcomp.C program file and the Oniguruma modules of the MdeModulePkg/Universal/RegularExpressionDxe component. This condition may allow for unexpected behavior or potential compromise of the system.

Recommendations Update CloverBootloader to version 5162 or later.

Fix

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2026-24795

Affected Products

Cloverbootloader

Mdemodulepkg/Universal/Regularexpressiondxe

References · 4

• https://github.com/CloverHackyColor/CloverBootloader/pull/733 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-24795 · Security Note
• https://osv.dev/vulnerability/CVE-2026-24795 · Vendor Advisory
• https://twitter.com/CVEnew/status/2016073219099217968 · Twitter Post