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TI-2020-17322 Aliases CVE-2020-28590GHSA-6275-8j43-765j

Improper input validation in Slic3r

Priority LOW 32CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

An out-of-bounds read vulnerability exists in the Obj File TriangleMesh::TriangleMesh() functionality of Slic3r libslic3r 1.3.0 and Master Commit 92abbc42. A specially crafted obj file could lead to information disclosure. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

EPSS 0.01342 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Slic3rSlic3r libslic3r 1.3.0 , Slic3r libslic3r Master Commit 92abbc42—No fix listedCNA
  • Slic3r Vendor— Affected Slic3r libslic3r 1.3.0 , Slic3r libslic3r Master Commit 92abbc42 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:slic3r:libslic3r:1.3.0:*:*:*:*:*:*:*1.3.0VulnerableSlic3r
  • cpe:2.3:a:slic3r:libslic3r:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·Slic3r

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-28590
  2. 2026-10-03 Alias added: GHSA-6275-8j43-765j

References

Exploit 1

  • TI-2022-17785 Improper array index validation in ADMesh CVSS 3.1HIGH 8.8
  • TI-2022-17029 Out-of-bounds write in Slic3r libslic3r CVSS 3.1HIGH 8.1
  • TI-2020-17323 Improper input validation in Slic3r CVSS 3.1MEDIUM 6.5
  • TI-2021-20349 An out-of-bounds read vulnerability exists in the GCode::extrude() functionality of… CVSS 3.1MEDIUM 5.5
  • TI-2021-20348 A memory leakage flaw exists in the class PerimeterGenerator of Slic3r libslic3r 1.3.0… CVSS 3.1MEDIUM 5.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences