CVE catalog
CVE-2021-44961
slic3r: CVE-2021-44961
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.78% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | slic3r | bookworm | 1.3.0+dfsg1-5 | vulnerable |
| Ubuntu | slic3r | 16.04 | 1.2.9+dfsg-2 | vulnerable |
| Ubuntu | slic3r | 16.04 | 1.2.9+dfsg-2build1 | vulnerable |
| Ubuntu | slic3r | 18.04 | 1.2.9+dfsg-6.1 | vulnerable |
| Ubuntu | slic3r | 18.04 | 1.2.9+dfsg-8 | vulnerable |
| Ubuntu | slic3r | 18.04 | 1.2.9+dfsg-9 | vulnerable |
| Ubuntu | slic3r | 20.04 | 1.3.0+dfsg1-3 | vulnerable |
| Ubuntu | slic3r | 20.04 | 1.3.0+dfsg1-3build1 | vulnerable |
| Ubuntu | slic3r | 20.04 | 1.3.0+dfsg1-3ubuntu1 | vulnerable |
| Ubuntu | slic3r | 22.04 | 1.3.0+dfsg1-5 | vulnerable |
| Ubuntu | slic3r | 22.04 | 1.3.0+dfsg1-5build1 | vulnerable |
| Ubuntu | slic3r | 24.04 | 1.3.0+dfsg1-5build2 | vulnerable |
| Ubuntu | slic3r | 24.04 | 1.3.0+dfsg1-5build3 | vulnerable |
| Ubuntu | slic3r | 24.04 | 1.3.0+dfsg1-5build4 | vulnerable |
| Ubuntu | slic3r | 24.04 | 1.3.0+dfsg1-5build5 | vulnerable |
| Ubuntu | slic3r | 24.04 | 1.3.0+dfsg1-5build6 | vulnerable |
| Ubuntu | slic3r | 25.10 | 1.3.0+dfsg1-5.1 | vulnerable |
| Ubuntu | slic3r | 25.10 | 1.3.0+dfsg1-5.1build1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | slic3r | source | bookworm | (unfixed) | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
Observed: