CVE-2026-90622

GNU libredwg Layer Encoding dwg.spec DWG_TABLE null pointer dereference

Published: Sep 14, 2026Updated: Sep 15, 2026 Sources: CVE List NVDCWE-404

3.3LOW

Description

A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. Upgrading to version 0.14 will fix this issue. The patch is named f5b548c4c1697d66c3dabd0f6a49280a14365a3a. The affected component should be upgraded. The FIELD_HANDLE macro itself is NULL-safe (emits null_handle) - only the two raw zeroing assignments added by 27118c40 ("encode: also disable LAYER.material") dereferenced a NULL material handle; the fix restores the file's existing if (_obj->style) guard convention for material.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:LAttack Vector

Local

AC:LAttack Complexity

Low

PR:LPrivileges Required

Low

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:LAvailability

Low

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Weaknesses

CWE-404 CWE-476

Affected Products

GNU

oss-project·USaka g. nu

libredwg

OSS Libraries

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Impact

Initial Access

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References

https://github.com/LibreDWG/libredwg/commit/f5b548c4c1697d66c3dabd0f6a49280a14365a3a

github.com

https://github.com/LibreDWG/libredwg/issues/1269

github.com

https://github.com/LibreDWG/libredwg/releases/tag/0.14

github.com

and 6 more references View all →

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