CVE-2026-91780
GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Reserved
- Sep 15, 2026
Description
A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through a bug report but has not responded yet.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P | VulDB |
| 3.1 | 3.3 Low | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.3 Low | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
BinutilsGNU |
|
References
- VDB-404051 | GNU Binutils elflink.c elf_link_add_object_symbols null pointer dereferencevdb-entrytechnical-description
- VDB-404051 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-91780 | CVE Analysis and Reportthird-party-advisory
- Submit #933334 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereferencethird-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=34447issue-tracking
- https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34447exploit
- https://www.gnu.org/broken-linkproduct
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