CVE catalog

CVE-2025-3158

assimp: CVE-2025-3158

Severity: Medium · CVSS 5.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
Published: Apr 3, 2025, 1:31:06 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.33% · Oct 25, 2026

A vulnerability, which was classified as critical, has been found in Open Asset Import Library Assimp 5.4.3. Affected by this issue is the function Assimp::LWO::AnimResolver::UpdateAnimRangeSetup of the file code/AssetLib/LWO/LWOAnimation.cpp of the component LWO File Handler. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used.

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`	vulnerable
Debian	assimp	bookworm	`5.2.5~ds0-1`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	assimp	source	sid	`6.0.2+ds-1`	not yet assigned	Not reported	[1102204]
Debian	assimp	source	forky	`6.0.2+ds-1`	not yet assigned	Not reported	[1102204]
Debian	assimp	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1102204]
Debian	assimp	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1102204]

[Debian bug #1102204]

Notes

[trixie] assimp: Minor issue, revisit when/if fixed upstream [bookworm] assimp: Minor issue, revisit when/if fixed upstream

OpenFactory catalog packages

[Debian 12 (Bookworm)]

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

[Debian 13 (Trixie)]

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

Observed: Oct 24, 2026, 11:09:20 PM UTC

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]