CVE-2026-91781
Published: September 18, 2026Last modified: October 6, 2026
Description
A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer dereference. The attack needs to be performed locally. The exploit has been disclosed publicly and may be used. Upgrading to version 2.48 is able to address this issue. The identifier of the patch is 7322e9bc30cb282575a701c307851fd3d66fee68. It is suggested to upgrade the affected component.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.3 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | LOW |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | binutils | Unknown (2.39-r2) |
| 25 LTS | binutils | Unknown (2.44-r0) | |
| Stream | binutils | Unknown (2.40-r4) | |
| Hardened Containers | 23 LTS | binutils | Unknown (2.39-r2) |
| 25 LTS | binutils | Unknown (2.44-r0) | |
| Stream | binutils | Unknown (2.40-r4) |
References
- https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449
- https://sourceware.org/bugzilla/show_bug.cgi?id=34449
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68
- https://vuldb.com/cve/CVE-2026-91781
- https://vuldb.com/submit/933336
- https://vuldb.com/vuln/404052
- https://vuldb.com/vuln/404052/cti
- https://www.gnu.org/