Vulnerability · Published Feb 10, 2021 · Assigned by talos

CVE-2020-28595

High 8.8

In plain English

A high-severity heap buffer overflow in Prusa Research. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities).

Severity (CVSS 3.0)8.8High
Exploit odds (30 days)1.6%top 23.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

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

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12slic3r-prusano fix listedDEBIAN-CVE-2020-28595
Debian:13slic3r-prusano fix listedDEBIAN-CVE-2020-28595
Debian:14slic3r-prusano fix listedDEBIAN-CVE-2020-28595
Ubuntu:22.04:LTSslic3r-prusano fix listedUBUNTU-CVE-2020-28595
Ubuntu:24.04:LTSslic3r-prusano fix listedUBUNTU-CVE-2020-28595
Ubuntu:25.10slic3r-prusano fix listedUBUNTU-CVE-2020-28595
Ubuntu:26.04:LTSslic3r-prusano fix listedUBUNTU-CVE-2020-28595
Ubuntu:26.10slic3r-prusano fix listedUBUNTU-CVE-2020-28595

Affected products (as reported)

VendorProductVersions
n/a Prusa Research Prusa Research PrusaSlicer 2.2.0 ,Prusa Research PrusaSlicer Master (commit 4b040b856)

Weakness: CWE-122 · Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References