Skip to main content
No exploitation reportedFix available

CVE-2021-45343

No exploitation reported by the sources we read.

  • Published2022-01-25
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.

Timeline

dates in UTC
  1. 2022-01-2513:15CVE publishedNVD

Versions per branch

NVD
Librecad
BranchAffectedFixed in
2.2= 2.2.0no fix published
Debian debian linux
BranchAffectedFixed in
10.0= 10.0no fix published
11.0= 11.0no fix published
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
35.x= 35no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libdxfrwMageia:8all versions · fixed in 1.0.1-1.1.mga8
  • librecadUbuntu:Pro:18.04:LTSall versions · fixed in 2.1.2-1ubuntu0.1~esm1
  • librecadUbuntu:Pro:16.04:LTSall versions · fixed in 2.0.9-2ubuntu0.1~esm1
  • librecadUbuntu:22.04:LTSall versions · fixed in 2.1.3-3
  • librecadUbuntu:20.04:LTSall versions · fixed in 2.1.3-1.2+deb10u1build0.20.04.1
  • librecadUbuntu:18.04:LTSall versions · fixed in 2.1.2-1ubuntu0.1
  • librecadDebian:14all versions · fixed in 2.1.3-3
  • librecadDebian:13all versions · fixed in 2.1.3-3

4 more package ranges on OSV.dev

Vendor advisories

  • CVE-2021-45343 Red Hat Product Security

    librecad: NULL pointer dereference in the HATCH handling of libdxfrw can lead to DoS via a crafted DXF document

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2022-01-25
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-xcgm-pvwf-mjq7

Frequently asked questions

What is CVE-2021-45343?

In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.

Is CVE-2021-45343 actively exploited?

Active exploitation of CVE-2021-45343 has not been confirmed. Its EPSS score was 0.9% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-45343?

CVE-2021-45343 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Running librecad? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record