CVE-2026-9501mediumCWE-617

CVE-2026-9501: medium-severity vulnerability in GNU LibreDWG

GNU LibreDWG Dwgread Utility decode.c decompress_R2004_section assertion

Published · Updated

33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.8epss 0.2%
exploitation probability
0.2%top 95% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
A vulnerability was determined in GNU LibreDWG up to 0.14. The impacted element is the function decompress_R2004_section of the file src/decode.c of the component Dwgread Utility. Executing a manipulation can lead to reachable assertion. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. This patch is called e501cb9926c1e9a07a0d1cc997f3e69e9be801c9. A patch should be applied to remediate this issue.
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
GNU · LibreDWG
public PoCs found — 1
cve_referencegithub.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwgunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — GNU LibreDWG

In the same product, most dangerous first.

CVE-2026-15520MEDIUMGNU LibreDWG R2004 Section Decompression decode.c decompress_R2004_section heap-based overflowEPSS 0.2%CVE-2026-15182MEDIUMGNU LibreDWG BMP Image dwg.c dwg_bmp heap-based overflowEPSS 0.2%CVE-2026-9502MEDIUMGNU LibreDWG Dwgread Utility decode.c decompress_R2004_section heap-based overflowEPSS 0.2%CVE-2026-9500MEDIUMGNU LibreDWG Dwgread Utility decode.c read_2004_compressed_section heap-based overflowEPSS 0.2%CVE-2026-15184MEDIUMGNU LibreDWG DWG File dwg.c dwg_next_entity null pointer dereferenceEPSS 0.2%CVE-2026-9504MEDIUMGNU LibreDWG Dwggrep Utility dwggrep.c bit_convert_TU out-of-boundsEPSS 0.2%
References
https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_assert_fail_decompress_R2004_section.dwghttps://github.com/LibreDWG/libredwg/commit/e501cb9926c1e9a07a0d1cc997f3e69e9be801c9https://github.com/LibreDWG/libredwg/issues/1242https://vuldb.com/submit/814250https://vuldb.com/vuln/365483https://vuldb.com/vuln/365483/ctihttps://www.gnu.org/