{"id":"CVE-2021-44961","title":"A memory leakage flaw exists in the class PerimeterGenerator of Slic3r libslic3r 1.3.0 and Master Commit b1a5500","summary":"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 vulnerabi…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-401"],"vendor":"slic3r","product":"libslic3r","affected":["libslic3r = 1.3.0"],"published":"2022-03-01","updated":"2026-07-05","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2021-44961","references":[{"url":"https://hackmd.io/nDT_UKLyRQendxDwil9A4w","label":"cve@mitre.org"},{"url":"http://libslic3r.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://slic3r.com","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://hackmd.io/nDT_UKLyRQendxDwil9A4w","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.00709,"epssPercentile":0.51628,"ingestedAt":"2026-07-06T02:09:23.251Z","slug":"CVE-2021-44961","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `libslic3r = 1.3.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}