What is CVE-2019-20912?

CVE-2019-20912 is a high-severity vulnerability in GNU Libredwg, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-07-16.

How severe is CVE-2019-20912?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in GNU Libredwg

CVE-2019-20912

An issue was discovered in GNU LibreDWG through 0.9.3. Crafted input will lead to a stack overflow in bits.c, possibly related to bit_read_TF.

Vulnerability class: Buffer Overflow

Published 2020-07-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.013 (69.7th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

GNU Libredwg

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/LibreDWG/libredwg/issues/178 (Exploit, Third Party Advisory)
github.com/LibreDWG/libredwg/commit/b84c2cab55948a5ee70860779b2640913e3ee1ed (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2019-20912?: CVE-2019-20912 is a high-severity vulnerability in GNU Libredwg, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2020-07-16.
How severe is CVE-2019-20912?: High severity. CVSS v3 base score is 8.8 out of 10.