CVE-2020-28594

Name: CVE-2020-28594
Creator: NVD / NIST
Published: 2021-08-17T20:15:07.487+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 1.34%

Last modified Jun 17, 2026

CVE-2020-28594 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A use-after-free vulnerability exists in the _3MF_Importer::_handle_end_model() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted 3MF file can lead to code execution. EPSS estimates a 1.34% chance of exploitation in the next 30 days.

Description

A use-after-free vulnerability exists in the _3MF_Importer::_handle_end_model() functionality of Prusa Research PrusaSlicer 2.2.0 and Master (commit 4b040b856). A specially crafted 3MF file can lead to code execution. An attacker can provide a malicious file to trigger this vulnerability.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Probability

1.34%

67.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Prusa3d	Prusaslicer	2.2.0

References

https://talosintelligence.com/vulnerability_reports/TALOS-2020-1218Exploit, Third Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1218Exploit, Third Party Advisory

Timeline

Published: Aug 17, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-28594?

How severe is CVE-2020-28594?

CVE-2020-28594 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 1.34% probability of exploitation in the next 30 days.

How do I fix CVE-2020-28594?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-28594?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST