CVE-2026-90804 GNU Binutils Eh Frame Section elf-eh-frame.c _bfd_elf_write_section_eh_frame buffer overflow
A local attacker can trigger a buffer overflow in GNU Binutils via crafted ELF files, potentially leading to code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-90804?
CVE-2026-90804 is a low-severity memory corruption vulnerability in Gnu Binutils, published on 14 Sep 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
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.
Which versions are affected by CVE-2026-90804?
It affects 1 product.
Products include Gnu Binutils.
How do I fix CVE-2026-90804?
No fix published yet.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-90804 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-90804 exists.
Other vulnerabilities in Gnu Binutils
Sources
Also known as DEBIAN-CVE-2026-90804, ECHO-5956-b308-0782, GHSA-45j6-5xqm-57mq, UBUNTU-CVE-2026-90804.