CVE catalog

CVE-2021-45948

assimp: CVE-2021-45948

Severity: Medium
Published: Jan 1, 2022, 12:15:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.97% · Oct 25, 2026

Open Asset Import Library (aka assimp) 5.1.0 and 5.1.1 has a heap-based buffer overflow in _m3d_safestr (called from m3d_load and Assimp::M3DWrapper::M3DWrapper).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	assimp	sid	`6.0.5+ds-1`	fixed
Debian	assimp	forky	`6.0.5+ds-1`	fixed
Debian	assimp	trixie	`5.4.3+ds-2`	fixed
Debian	assimp	bookworm	`5.2.5~ds0-1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	assimp	source	sid	`5.1.1~ds0-1`	not yet assigned	Not reported	Not reported
Debian	assimp	source	forky	`5.1.1~ds0-1`	not yet assigned	Not reported	Not reported
Debian	assimp	source	trixie	`5.1.1~ds0-1`	not yet assigned	Not reported	Not reported
Debian	assimp	source	bookworm	`5.1.1~ds0-1`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[assimp-testmodels]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[assimp-utils]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp5]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp-dev]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1+b1 · amd64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1+b1 · arm64 · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[libassimp-doc]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
[python3-pyassimp]Fixed
Source package: [assimp]
Details (2)
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12
- 5.2.5~ds0-1 · all · bookworm
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · bookworm; dsa · assimp · debian · 12

[Debian 13 (Trixie)]

[assimp-testmodels]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
[assimp-utils]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
[libassimp5]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
[libassimp-dev]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · amd64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · arm64 · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
[libassimp-doc]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
[python3-pyassimp]Fixed
Source package: [assimp]
Details (2)
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13
- 5.4.3+ds-2 · all · trixie
  Fixed · Fixed: 5.1.1~ds0-1
  dsa · assimp · debian · 13

Observed: Oct 23, 2026, 6:04:01 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]