Integer overflow in Barebox
CVE-2026-34963
barebox version prior to 2026.04.0 contains multiple memory-safety vulnerabilities in the EFI PE loader in efi/loader/pe.c where integer overflow in virtual image size computation using 32-bit arithmetic on section VirtualAddress and size…
Vulnerability class: Integer Overflow
EPSS: 0.000 (5.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Barebox — versions 0
- Pengutronix Barebox
Weakness classification (CWE)
References
- disclosure@vulncheck.com (Product, product)
- disclosure@vulncheck.com (Release Notes, patch)
- disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)
Frequently asked questions
- What is CVE-2026-34963?
- CVE-2026-34963 is a high-severity vulnerability in Barebox, classified under Integer Overflow or Wraparound. CVSS score: 8.4/10. Published 2026-05-11.
- How severe is CVE-2026-34963?
- High severity. CVSS v3 base score is 8.4 out of 10.