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Fencer Vulns
high 7.8

CVE-2021-45845 json

The Path Sanity Check script of FreeCAD 0.19 is vulnerable to OS command injection, allowing an attacker to execute arbitrary commands via…

published 2022-01-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-32563

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.9%
EPSS 1.9% chance of exploitation in 30 days, percentile 79%
public exploits
0
none known

Summary

The Path Sanity Check script of FreeCAD 0.19 is vulnerable to OS command injection, allowing an attacker to execute arbitrary commands via a crafted FCStd document.

Patch / fix

  • freecad Debian 14, Debian 13, Debian 12 0.19.4+dfsg1-1

debian advisories DEBIAN-CVE-2021-45845

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2021-45845 updated cvss 8.8

freecad: Path Sanity Check script is vulnerable to OS command injection via a crafted FCStd document

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.92% chance of exploitation in the next 30 days, higher than 79% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • tracker.freecad.org https://tracker.freecad.org/view.php?id=4810 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.