What is CVE-2022-33034?

CVE-2022-33034 is a high-severity vulnerability in GNU Libredwg, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-06-23.

How severe is CVE-2022-33034?

High severity. CVSS v3 base score is 7.8 out of 10.

Buffer overflow in GNU Libredwg

CVE-2022-33034

LibreDWG v0.12.4.4608 was discovered to contain a stack overflow via the function copy_bytes at decode_r2007.c.

Vulnerability class: Buffer Overflow

Published 2022-06-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.007 (53.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 53.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: +0.000

Affected products

GNU Libredwg — versions 0.12.4.4608

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

github.com/LibreDWG/libredwg/issues/494 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-33034?: CVE-2022-33034 is a high-severity vulnerability in GNU Libredwg, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-06-23.
How severe is CVE-2022-33034?: High severity. CVSS v3 base score is 7.8 out of 10.