CVE-2024-52880

What it is

An issue was discovered in Insyde InsydeH2O kernel 5.2 before version 05.29.50, kernel 5.3 before version 05.38.50, kernel 5.4 before version 05.46.50, kernel 5.5 before version 05.54.50, kernel 5.6 before version 05.61.50, and kernel 5.7 before version 05.70.50. In VariableRuntimeDxe driver, SecureBootHandler uses DataSize and VariableNameSize when determining if the data or name are in the buffer, but these are supplied by the caller and therefore cannot be trusted.

At a glance

Exploitability

Can be exploited locally on the machine with an admin-level account. High risk of data exposure, data tampering.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-05-15 16:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 08:07 UTC Last updatedMost recent change to the record

Details

Published

2025-05-15 16:15 UTC

Last modified

2026-06-17 08:07 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-20 · Improper input validation

Record status

Analyzed

Affected

• Insyde Kernel < 5.29.50
• Insyde Kernel < 5.38.50
• Insyde Kernel < 5.46.50
• Insyde Kernel < 5.54.50
• Insyde Kernel < 5.61.50
• Insyde Kernel < 5.70.50

Attack profile CVSS 3.1 · 7.9

Attack vector

Local

Complexity

Low

Privileges needed

High

User interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None