CVE-2021-44961

5.5 mediumEPSS 0.8%

Medium (5.5) in slic3r libslic3r. EPSS 0.8% 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.

Severity

CVSS 3.1

5.5 medium

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

EPSS: 0.8% chance of exploitation in the next 30 days; higher than 55% of CVEs (scores of 2026-11-01)
CWE: CWE-401
Published: 2022-03-01
Modified: 2026-07-09
Record from: the NVD, synced 2026-10-19

Affected

slic3r:libslic3r

References

https://hackmd.io/nDT_UKLyRQendxDwil9A4w
https://hackmd.io/nDT_UKLyRQendxDwil9A4w

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