What’s Vulnerable › Vulnerabilities

CVE-2024-52880

• Severity: high (CVSS 7.9 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-15 · updated 2026-06-17
• Weakness: CWE-20

Description

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.

Affected products

• Insyde Kernel: from 5.2 before 5.29.50; from 5.3 before 5.38.50; from 5.4 before 5.46.50; from 5.5 before 5.54.50; from 5.6 before 5.61.50; from 5.7 before 5.70.50 — fixed in 5.29.50, 5.38.50, 5.46.50, 5.54.50, 5.61.50, 5.70.50

How to fix

Upgrade to a fixed version: Insyde Kernel 5.29.50, 5.38.50, 5.46.50, 5.54.50. Check the vendor advisory for mitigations.

References

• https://www.insyde.com/security-pledge
• https://www.insyde.com/security-pledge/sa-2024016/

Get alerted when CVE-2024-52880 or the next vulnerability affects your stack