CVE-2026-91782: NULL Pointer Dereference in GNU Binutils
CVE-2026-91782 is a medium severity vulnerability in GNU Binutils version 2.47. It involves a null pointer dereference in the elf_x86_allocate_dynrelocs function within the Dynamic Relocation Allocation component. The vulnerability requires local access to exploit and does not require user interaction. Exploit code is publicly available. Upgrading to GNU Binutils version 2.48 resolves the issue.
AI Analysis
Technical Summary
The vulnerability CVE-2026-91782 affects GNU Binutils 2.47 in the elf_x86_allocate_dynrelocs function of the bfd/elfxx-x86.c file, causing a null pointer dereference. This flaw can be triggered locally by an attacker with low privileges without user interaction. The vulnerability has a CVSS 4.8 (medium) score and an exploit is publicly available. The issue is fixed in version 2.48 by applying the patch identified by commit hashes d1268210b6f6/471130b39c0/283d3198bed/0a84e560216/a692a633d40.
Potential Impact
Successful exploitation results in a null pointer dereference, which may cause a denial of service or crash of the affected component. The attack requires local access and low privileges. There is no indication of privilege escalation or remote exploitation. The exploit is publicly available, increasing the risk of local attacks.
Mitigation Recommendations
Upgrade GNU Binutils to version 2.48 or later, where this vulnerability is fixed. Applying the official patch identified by the provided commit hashes will also remediate the issue. No other mitigations are indicated or required.
CVE-2026-91782: NULL Pointer Dereference in GNU Binutils
Description
CVE-2026-91782 is a medium severity vulnerability in GNU Binutils version 2.47. It involves a null pointer dereference in the elf_x86_allocate_dynrelocs function within the Dynamic Relocation Allocation component. The vulnerability requires local access to exploit and does not require user interaction. Exploit code is publicly available. Upgrading to GNU Binutils version 2.48 resolves the issue.
CVSS v4.0
Score 4.8medium
Affected software
GNU
Binutils
cpe:2.3:a:gnu:binutils:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-91782 affects GNU Binutils 2.47 in the elf_x86_allocate_dynrelocs function of the bfd/elfxx-x86.c file, causing a null pointer dereference. This flaw can be triggered locally by an attacker with low privileges without user interaction. The vulnerability has a CVSS 4.8 (medium) score and an exploit is publicly available. The issue is fixed in version 2.48 by applying the patch identified by commit hashes d1268210b6f6/471130b39c0/283d3198bed/0a84e560216/a692a633d40.
Potential Impact
Successful exploitation results in a null pointer dereference, which may cause a denial of service or crash of the affected component. The attack requires local access and low privileges. There is no indication of privilege escalation or remote exploitation. The exploit is publicly available, increasing the risk of local attacks.
Mitigation Recommendations
Upgrade GNU Binutils to version 2.48 or later, where this vulnerability is fixed. Applying the official patch identified by the provided commit hashes will also remediate the issue. No other mitigations are indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-15T02:01:19.557Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa9098d55bf5e2cf58f90f1
Added to database: 09/15/2026, 09:02:05 UTC
Last enriched: 09/15/2026, 09:16:55 UTC
Last updated: 09/15/2026, 09:21:30 UTC
Views: 5
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