CVE-2026-9503
Deferred Deferred - Pending Action
Null Pointer Dereference in GNU LibreDWG

Publication date: 2026-05-25

Last updated on: 2026-05-25

Assigner: VulDB

Description
A security flaw has been discovered in GNU LibreDWG up to 0.14. This impacts the function dwg_next_entity of the file src/decode.c of the component DWG File Handler. The manipulation results in null pointer dereference. The attack must be initiated from a local position. The exploit has been released to the public and may be used for attacks. The patch is identified as 8f03865f37f5d4ffd616fef802acc980be54d300. Upgrading the affected component is advised.
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Meta Information
Published
2026-05-25
Last Modified
2026-05-25
Generated
2026-06-15
AI Q&A
2026-05-26
EPSS Evaluated
2026-06-14
NVD
CVE-2026-9503
EUVD
EUVD-2026-31741
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
gnu libredwg to 0.14 (inc)
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 security flaw found in GNU LibreDWG up to version 0.14, specifically in the function dwg_next_entity within the file src/decode.c of the DWG File Handler component.

The flaw causes a null pointer dereference when manipulated, which means the program tries to access or use a memory location that is not properly initialized or is null.

The attack exploiting this vulnerability must be initiated locally, meaning an attacker needs local access to the system to trigger it.

An exploit for this vulnerability has been publicly released, making it possible for attackers to use it.

A patch has been identified to fix this issue, and upgrading the affected component is recommended.

Impact Analysis

This vulnerability can cause a null pointer dereference, which may lead to a crash or denial of service of the affected application.

Since the attack requires local access, the impact is limited to users or attackers who already have some level of access to the system.

The vulnerability does not directly impact confidentiality or integrity, but it can disrupt availability by causing the application to fail.

Mitigation Strategies

The immediate step to mitigate this vulnerability is to upgrade the affected GNU LibreDWG component to a version that includes the patch identified as 8f03865f37f5d4ffd616fef802acc980be54d300.

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