CVE-2021-43614

MEDIUM CVSS 3.1: 6.7 EPSS 0.13%
Updated Sep 03, 2026
Insyde Software
Parameter Value
CVSS 6.7 (MEDIUM)
Type CWE-120 (Buffer Copy without Checking Size)
Vendor Insyde Software
Public PoC No

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

Attack Parameters

Attack Vector
Physical
Requires physical access
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Vulnerable Products

insyde software:insydeh2o