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.
Conclusion & alert: CVE-2024-52880 is rated Moderate Risk (40.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-11 | 0.02% | 0.08% | +0.07% |
| 2 | 2025-05-16 | — | 0.02% | — |
Full EPSS history (2 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.9 | 3.1 | HIGH |
|
1.5 | 5.8 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| insyde | kernel | >= 5.2, < 5.29.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| insyde | kernel | >= 5.3, < 5.38.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| insyde | kernel | >= 5.4, < 5.46.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| insyde | kernel | >= 5.5, < 5.54.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| insyde | kernel | >= 5.6, < 5.61.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| insyde | kernel | >= 5.7, < 5.70.50 | cpe:2.3:o:insyde:kernel:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://www.insyde.com/security-pledge | Vendor Advisory |
| https://www.insyde.com/security-pledge/sa-2024016/ | Vendor Advisory |