What’s Vulnerable › Vulnerabilities

CVE-2026-9502: GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflow

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-25 · updated 2026-07-23
• Weakness: CWE-119

Description

A vulnerability was identified in GNU LibreDWG up to 0.14. This affects the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. The manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. To fix this issue, it is recommended to deploy a patch.

Affected products

• GNU LibreDWG: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+8)

References

• https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_overflow_decompress_R2004_section.dwg
• https://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9
• https://github.com/LibreDWG/libredwg/issues/1243
• https://vuldb.com/submit/814259
• https://vuldb.com/vuln/365484
• https://vuldb.com/vuln/365484/cti
• https://www.gnu.org/

Get alerted when CVE-2026-9502 or the next vulnerability affects your stack