CVE-2026-15520GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow

Description

A vulnerability was determined in GNU LibreDWG 0.13.4-154-g0b573035. This impacts the function decompress_R2004_section of the file src/decode.c of the component R2004 Section Decompression. Executing a manipulation can lead to heap-based buffer overflow. The attack requires local access. The exploit has been publicly disclosed and may be utilized. Upgrading to version 0.14.8396 will fix this issue. This patch is called 3d0f9fc2eddbd6579c99af3111c37c98f03475d0. You should upgrade the affected component.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-377849 | GNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflow vdb-entrytechnical-description
• VDB-377849 | CTI Indicators (IOB, IOC, IOA) signaturepermissions-required
• CVE-2026-15520 | CVE Analysis and Report third-party-advisory
• Submit #851190 | LibreDWG 0.13.4-154-g0b573035 (main branch, commit 0b573035, 2026-04-29) 内存损坏 (Heap Buffer Overflow - Write) third-party-advisory
• https://github.com/LibreDWG/libredwg/issues/1251 issue-tracking
• https://github.com/advisories/GHSA-qg2f-8389-w95j broken-linkissue-tracking
• https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_0b57303_heap_overflow_decompress_R2004_sec… exploit
• https://github.com/LibreDWG/libredwg/commit/3d0f9fc2eddbd6579c99af3111c37c98f03475d0 patch
• https://github.com/LibreDWG/libredwg/releases/tag/0.14.8396 patch
• https://www.gnu.org/ broken-linkproduct