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TI-2020-17330 Aliases CVE-2020-28598GHSA-r4pr-c48w-whqg

Heap-based buffer overflow in Prusa Research

Priority LOW 37CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

An out-of-bounds write vulnerability exists in the Admesh stl_fix_normal_directions() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted AMF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

EPSS 0.01274 70th 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
—Prusa ResearchPrusa Research PrusaSlicer 2.2.0 ,Prusa Research PrusaSlicer Master (commit 4b040b856)—No fix listedCNA
  • Prusa Research Vendor— Affected Prusa Research PrusaSlicer 2.2.0 ,Prusa Research PrusaSlicer Master (commit 4b040b856) Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:prusa3d:prusaslicer:2.2.0:-:*:*:*:*:*:*2.2.0VulnerablePrusa3d
  • cpe:2.3:a:prusa3d:prusaslicer:2.2.0:-:*:*:*:*:*:* Versions 2.2.0 Vulnerable ·Prusa3d

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-28598
  2. 2026-10-03 Alias added: GHSA-r4pr-c48w-whqg

References

Exploit 1

  • TI-2023-25584 In libslic3r/GCode/PostProcessor.cpp in Prusa PrusaSlicer through 2.6.1, a crafted 3mf… CVSS 3.1MEDIUM 5.3
  • TI-2022-10466 Caphyon Ltd Advanced Installer 19.3 and earlier and many products that use the updater… CVSS 3.1HIGH 8.1
  • TI-2020-17328 Out-of-bounds write in Prusa Research CVSS 3.1HIGH 7.8
  • TI-2020-17327 Heap-based buffer overflow in Prusa Research CVSS 3.1HIGH 7.8
  • TI-2020-17326 Use after free in Prusa Research CVSS 3.1HIGH 7.8

Sources

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