What is CVE-2018-14471?

CVE-2018-14471 is a medium-severity vulnerability in GNU Libredwg, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-07-20.

How severe is CVE-2018-14471?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in GNU Libredwg

CVE-2018-14471

dwg_obj_block_control_get_block_headers in dwg_api.c in GNU LibreDWG 0.5.1048 allows remote attackers to cause a denial of service (NULL pointer dereference and SEGV) via a crafted dwg file.

Published 2018-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.014 (70.4th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 70.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000

Affected products

GNU Libredwg

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/LibreDWG/libredwg/issues/32 (Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2018-14471?: CVE-2018-14471 is a medium-severity vulnerability in GNU Libredwg, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2018-07-20.
How severe is CVE-2018-14471?: Medium severity. CVSS v3 base score is 6.5 out of 10.