CVE-2026-91780
Received Received - Intake

Null Pointer Dereference in GNU Binutils

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: VulDB

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.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-91780
EUVD
EUVD-2026-78327

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gnu binutils 2.47

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
CWE-404 The product does not release or incorrectly releases a resource before it is made available for re-use.

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Executive Summary

This vulnerability is a null pointer dereference flaw in GNU Binutils 2.47, specifically in the elf_link_add_object_symbols function of bfd/elflink.c. It occurs when a manipulation is executed locally, potentially causing the program to crash or behave unexpectedly.

Detection Guidance

Since this is a local null pointer dereference in GNU Binutils 2.47, detection would require checking for vulnerable Binutils versions or running the provided proof-of-concept files from the GitHub repository. Commands like 'strings' or 'readelf' on suspicious binaries may help identify affected files. Review logs for crashes in Binutils tools.

Impact Analysis

The impact is limited as it requires local access and has a low severity score. It could lead to denial of service or application instability if exploited, but does not allow for remote code execution or data theft.

Compliance Impact

This vulnerability is unlikely to directly impact compliance with GDPR or HIPAA as it does not involve data exposure or unauthorized access. However, if it causes system instability in critical infrastructure, it could indirectly affect operational compliance.

Mitigation Strategies

Update GNU Binutils to the latest version if available. Avoid using untrusted binaries or files. Monitor for crashes in Binutils tools. Restrict local access to prevent exploitation. Apply patches once released by the project.

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