Buffer overflow in GNU Binutils
CVE-2026-90804
A vulnerability was detected in GNU Binutils 2.47. Affected by this issue is the function _bfd_elf_write_section_eh_frame of the file bfd/elf-eh-frame.c of the component Eh Frame Section Handler. Performing a manipulation of the argument cie_length/fde_length/augmentation_data_size/write_offset results in buffer overflow. Attacking locally is a requirement. The exploit is now public and may be used. The project was informed of the problem early through a bug report but has not responded yet.
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L.
Affected products
- Gnu Binutils — versions 2.47
Weakness classification (CWE)
References
- cna@vuldb.com (exploit)
- cna@vuldb.com (issue-tracking)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
- cna@vuldb.com (product, broken-link)
Frequently asked questions
- What is CVE-2026-90804?
- CVE-2026-90804 is a medium-severity vulnerability in GNU Binutils, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.8/10. Published 2026-09-14.
- How severe is CVE-2026-90804?
- Medium severity. CVSS v3 base score is 4.8 out of 10.