CVE-2021-44961: SLIC3R LIBSLIC3R

Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A memory leakage flaw exists in the class PerimeterGenerator of Slic3r libslic3r 1.3.0 and Master Commit b1a5500. Specially crafted stl files can exhaust available memory. An attacker can provide malicious files to trigger this vulnerability.

Affected products

• SLIC3R LIBSLIC3R: version 1.3.0 only

Published 2022-03-01. Last modified 2026-07-09.