Medium · 6.7 CVE-2021-43614 EUVD-2021-34869GHSA-j24h-m5cw-7785

VariableEditSmm: Error checking of UEFI variables could cause buffer overflow, leading to code execution

Published Sep 3, 2026 · Updated Sep 3, 2026 · Assigned by Insyde

Description

Error in handling the PlatformLangCodes UEFI variable could cause a buffer overflow, leading to resource exhaustion and failure.

Vendor	Product	Affected	Fixed
Insyde Software	InsydeH2O	InsydeH2OUvePkg – < 01.01.04.0008	01.01.04.0008