Buffer overflow in GNU Libredwg
CVE-2026-9605
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.006 (45.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.006 · change: +0.002
Affected products
- GNU Libredwg — versions 0.13.4.8160
Weakness classification (CWE)
References
- vuldb.com/vuln/365678 (technical-description, vdb-entry)
- vuldb.com/vuln/365678/cti (signature, permissions-required)
- vuldb.com/submit/818197 (third-party-advisory)
- github.com/LibreDWG/libredwg/issues/1248 (issue-tracking)
- github.com/HackC0der/CVE-Repos/blob/main/libredwg/libredwg_6d6a339_heap_oob_wri… (exploit)
- github.com/LibreDWG/libredwg/commit/8f03865f37f5d4ffd616fef802acc980be54d300 (patch)
- www.gnu.org/ (product, broken-link)
Frequently asked questions
- What is CVE-2026-9605?
- CVE-2026-9605 is a high-severity vulnerability in GNU Libredwg, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.3/10. Published 2026-05-27.
- How severe is CVE-2026-9605?
- High severity. CVSS v3 base score is 7.3 out of 10.