5.5 Medium

LibreDWG is a free C library to read and write DWG files.

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 decodeR13R2000 in src/decode.c. The class-decoding loop performs realloc on every iteration without a sanity check on numclasses. 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.

Assessment

CVSS: 5.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 30 October 2026
Last updated: 30 October 2026
Affected: LibreDWG
Assigner: GitHub_M

CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

At the source

EUVD (ENISA)

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