What is GHSA-j2xx-grh4-4p3q?

GHSA-j2xx-grh4-4p3q is a security advisory published by GitHub Security Advisories with Critical severity. An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the...

Which CVE IDs does GHSA-j2xx-grh4-4p3q cover?

GHSA-j2xx-grh4-4p3q covers the following CVE IDs: CVE-2025-70290. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-j2xx-grh4-4p3q?

GHSA-j2xx-grh4-4p3q has a CVSS v3 base score of 9.8, published by GitHub Security Advisories.

GHSA-j2xx-grh4-4p3qCriticalCVSS 9.8

An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the...

Vendor

GitHub Security Advisories

Published

August 26, 2026

Last Modified

August 27, 2026

🔗 CVE IDs covered (1)

CVE-2025-70290 →

📋 Description

An issue was discovered in Denx U-Boot before 2026.04. An integer overflow vulnerability in the ZFS filesystem support can be triggered by malformed on-disk metadata. The issue may result in incorrect memory allocation followed by out-of-bounds memory access, potentially leading to a crash or arbitrary code execution during the boot process.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2025-70290
https://gist.github.com/c0zy1/4d9648d10a5ff07bda2771ea1298e469
http://u-boot.com
https://github.com/advisories/GHSA-j2xx-grh4-4p3q