Vulnerability · Published Sep 14, 2026 · Assigned by VulDB
CVE-2026-90804GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_section_eh_frame buffer overflow
Medium 4.8
In plain English
A medium-severity buffer overflow in Binutils from GNU. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | binutils | no fix listed | DEBIAN-CVE-2026-90804 |
| Debian:13 | binutils | no fix listed | DEBIAN-CVE-2026-90804 |
| Debian:14 | binutils | no fix listed | DEBIAN-CVE-2026-90804 |
| Ubuntu:22.04:LTS | binutils | no fix listed | UBUNTU-CVE-2026-90804 |
| Ubuntu:24.04:LTS | binutils | no fix listed | UBUNTU-CVE-2026-90804 |
| Ubuntu:26.04:LTS | binutils | no fix listed | UBUNTU-CVE-2026-90804 |
| Ubuntu:26.10 | binutils | no fix listed | UBUNTU-CVE-2026-90804 |
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-403306 | GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_section_eh_frame buffer overflow vdb-entry, technical-description
- VDB-403306 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-90804 | CVE Analysis and Report third-party-advisory
- Submit #920281 | GNU Binutils 2.47 (version date 20260726) Heap-based Buffer Overflow third-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=34445 issue-tracking
- https://github.com/r1ck9-2q/cve_summit/blob/main/Heap%20OOB%20write%20%20negative-size%20%60memmove%60%20%20SEGV%20in%20%60_bfd_elf_write_section_eh_frame%60%20(bfdelf-eh-frame.c2064%20%202083%20%202193)%20via%20malformed%20%60.eh_frame%60.md exploit
- https://www.gnu.org/ broken-link, product