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Description

A flaw has been found in GNU libredwg up to 0.13.4.8160. This issue affects the function bit_read_RC of the file bits.c of the component Dwgbmp Utility. This manipulation causes heap-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been published and may be used. Patch name: 8f03865f37f5d4ffd616fef802acc980be54d300. Applying a patch is the recommended action to fix this issue.

PUBLISHED Reserved 2026-05-26 | Published 2026-05-26 | Updated 2026-05-28 | Assigner VulDB




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
HIGH: 7.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
HIGH: 7.3CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
7.5AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C

Problem types

Heap-based Buffer Overflow

Memory Corruption

Product status

0.13.4.8160
affected

Timeline

2026-05-26:Advisory disclosed
2026-05-26:VulDB entry created
2026-05-26:VulDB entry last update

Credits

r1ck9 (VulDB User) reporter

References

vuldb.com/submit/818197 exploit

github.com/LibreDWG/libredwg/issues/1248 exploit

vuldb.com/vuln/365678 (VDB-365678 | GNU libredwg Dwgbmp Utility bits.c bit_read_RC heap-based overflow) vdb-entry technical-description

vuldb.com/vuln/365678/cti (VDB-365678 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/818197 (Submit #818197 | LibreDWG libredwg (including the dwgbmp utility) 0.13.4.8160 Buffer Overflow) third-party-advisory

github.com/LibreDWG/libredwg/issues/1248 issue-tracking

github.com/...eap_oob_write_read_2004_compressed_section.dwg exploit

github.com/...ommit/8f03865f37f5d4ffd616fef802acc980be54d300 patch

www.gnu.org/ broken-link product

cve.org (CVE-2026-9605)

nvd.nist.gov (CVE-2026-9605)

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