CVE catalog

CVE-2026-42479

An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML

[CVE catalog]

Severity: Medium · CVSS 5.5
Published: May 1, 2026, 3:16:43 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.10% · Oct 25, 2026

An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.

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	opencascade	sid	`7.9.2+dfsg-5`	vulnerable
Debian	opencascade	forky	`7.9.2+dfsg-5`	vulnerable
Debian	opencascade	trixie	`7.8.1+dfsg1-3`	vulnerable
Debian	opencascade	bookworm	`7.6.3+dfsg1-7`	vulnerable
Cpe	opencascade	Not reported	Not reported	vulnerable
Cpe	open_cascade_technology	Not reported	Not reported	unknown

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	opencascade	source	sid	`(unfixed)`	not yet assigned	Not reported	[1136008]
Debian	opencascade	source	forky	`(unfixed)`	not yet assigned	Not reported	[1136008]
Debian	opencascade	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1136008]
Debian	opencascade	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1136008]

[Debian bug #1136008]

Notes

[trixie] opencascade: Minor issue [bookworm] opencascade: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libocct-data-exchange-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-data-exchange-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-doc]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · all · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · all · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-draw-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-draw-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-foundation-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-foundation-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-modeling-algorithms-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-modeling-algorithms-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-modeling-data-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-modeling-data-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-ocaf-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-ocaf-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-visualization-7.6]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[libocct-visualization-dev]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[occt-draw]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · amd64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · arm64 · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
[occt-misc]Affected
Source package: [opencascade]
Details (2)
- 7.6.3+dfsg1-7 · all · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12
- 7.6.3+dfsg1-7 · all · bookworm
  Affected
  nvd · opencascade · debian · bookworm; nvd · opencascade · debian · 12

[Debian 13 (Trixie)]

[libocct-data-exchange-7.8]Affected
Source package: [opencascade]
Details (2)
- 7.8.1+dfsg1-3 · amd64 · trixie
  Affected
  nvd · opencascade · debian · 13
- 7.8.1+dfsg1-3 · arm64 · trixie
  Affected
  nvd · opencascade · debian · 13
[libocct-data-exchange-dev]Affected
Source package: [opencascade]
Details (2)
- 7.8.1+dfsg1-3 · amd64 · trixie
  Affected
  nvd · opencascade · debian · 13
- 7.8.1+dfsg1-3 · arm64 · trixie
  Affected
  nvd · opencascade · debian · 13
[libocct-doc]Affected
Source package: [opencascade]
Details (2)
- 7.8.1+dfsg1-3 · all · trixie
  Affected
  nvd · opencascade · debian · 13
- 7.8.1+dfsg1-3 · all · trixie
  Affected
  nvd · opencascade · debian · 13

Next results

Observed: Oct 23, 2026, 10:21:51 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]