CVE-2026-42479

medium

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 caus…

Vendor / product: Opencascade — open cascade technology

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.

CVSS

5.5

5.5 (CVSS v3.1)

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Severity source: NVD CVSS v3.1 (nvd@nist.gov)

Timeline (UTC)

Published: 2026-05-01 15:16

Modified: 2026-11-08 16:10

NVD status: Modified

Last synced 3 days ago

Verified against the source API 2026-11-08 16:29 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

opencascade / open_cascade_technology ≤7.9.3, 8.0.0

Weakness classification (CWE)

CWE-125

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a cve@mitre.org

Data sources

NVD CVE API 2.0 — fetched 2026-11-08 16:29 UTC · record ↗

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CVE-2026-42479

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Weakness classification (CWE)

Mitigation & advisories

References

Data sources

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