CVE-2026-91781
GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereference
- State
- Published
- Severity
- 4.8 Medium
- Published
- Sep 15, 2026
- Updated
- Sep 15, 2026
- Reserved
- Sep 15, 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.
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:O/RC:C | 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:O/RC:C | VulDB |
| 2.0 | 1.7 Low | AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
BinutilsGNU |
|
References
- VDB-404052 | GNU Binutils ELF Section elf64-x86-64.c elf_x86_64_common_section_index null pointer dereferencevdb-entrytechnical-description
- VDB-404052 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- CVE-2026-91781 | CVE Analysis and Reportthird-party-advisory
- Submit #933336 | GNU GNU Binutils binutils 2.47 NULL Pointer Dereferencethird-party-advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=34449issue-tracking
- https://github.com/Ech06/CVE_submit/tree/main/bugzilla/pocs/34449exploit
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=7322e9bc30cb282575a701c307851fd3d66fee68broken-linkpatch
- https://www.gnu.org/broken-linkproduct
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