CVE-2026-9529
LOWGNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference
Title source: cnaDescription
A security flaw has been discovered in GNU LibreDWG up to 0.14. The affected element is the function match_BLOCK_HEADER of the file dwggrep.c of the component Dwggrep Utility. Performing a manipulation results in null pointer dereference. The attack requires a local approach. The exploit has been released to the public and may be used for attacks.
References (6)
Core 6
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-365548 | GNU LibreDWG Dwggrep Utility dwggrep.c match_BLOCK_HEADER null pointer dereference
https://vuldb.com/vuln/365548
Signature, Permissions Required signature
permissions-required
VDB-365548 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/365548/cti
Third Party Advisory third-party-advisory
Submit #814273 | LibreDWG Project LibreDWG <= 0.14, main branch up to commit 6d6a339 (2026-04-10) NULL Pointer Dereference (CWE-476)
https://vuldb.com/submit/814273
Issue Tracking issue-tracking
https://github.com/LibreDWG/libredwg/issues/1247
Exploit exploit
https://github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_write_read_2004_compressed_section.dwg
Product product
https://www.gnu.org/
Scores
CVSS v3
3.3
EPSS
0.0014
EPSS Percentile
3.9%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-404
CWE-476
Status
published
Products (14)
GNU/LibreDWG
0.1
GNU/LibreDWG
0.10
GNU/LibreDWG
0.11
GNU/LibreDWG
0.12
GNU/LibreDWG
0.13
GNU/LibreDWG
0.14
GNU/LibreDWG
0.2
GNU/LibreDWG
0.3
GNU/LibreDWG
0.4
GNU/LibreDWG
0.5
... and 4 more
Published
May 26, 2026
Tracked Since
May 26, 2026