What is CVE-2026-62254?

CVE-2026-62254 is a medium-severity vulnerability, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-10-30.

How severe is CVE-2026-62254?

Medium severity. CVSS v3 base score is 5.5 out of 10.

CVE-2026-62254

CVE-2026-62254

LibreDWG is a free C library to read and write DWG files. Prior to 0.14, a specially crafted R13-R2000 DWG can trigger algorithmic resource exhaustion in `decode_R13_R2000` in `src/decode.c`. The class-decoding loop performs `realloc` on every iteration without a sanity check on `num_classes`. Manipulating that field forces an extremely slow allocation loop and denial of service when the file is parsed. Running the parser in a sandbox with memory limits is a workaround rather than a remediation. This issue is fixed in version 0.14.

Vulnerability class: DoS (Denial of Service)

Published 2026-10-30 · last modified 2026-10-30.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-62254?: CVE-2026-62254 is a medium-severity vulnerability, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2026-10-30.
How severe is CVE-2026-62254?: Medium severity. CVSS v3 base score is 5.5 out of 10.