CVE catalog
CVE-2021-44962
slic3r: CVE-2021-44962
- Severity
- Low
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.01% · Oct 25, 2026
An out-of-bounds read vulnerability exists in the GCode::extrude() functionality of Slic3r libslic3r 1.3.0 and Master Commit b1a5500. A specially crafted stl file could lead to information disclosure. An attacker can provide a malicious file 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: