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Vulnerability · Published May 25, 2026 · Assigned by VulDB

CVE-2026-9500GNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflow

Medium 5.3

In plain English

A medium-severity heap buffer overflow in LibreDWG from GNU. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in GNU LibreDWG up to 0.14. The affected element is the function read_2004_compressed_section of the file src/decode.c of the component Dwgread Utility. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

VendorProductVersions
GNU LibreDWG 0.10.20.30.40.50.60.70.8

Weakness: CWE-122, CWE-119 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References