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CVE-2026-42479VulnerabilityPublished

VrmlData_IndexedLineSet::TShape · Out-of-bounds Read Vulnerability

Source GCVE Database

0
Authoritative record:CVE-2026-42479· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium.

Data as of 27 Oct 2026, 00:45 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Until a fix is available, avoid processing untrusted VRML files or implement input validation to ensure coordIndex values are within valid bounds.

Description

An out-of-bounds read vulnerability exists in the VrmlData_IndexedLineSet::TShape component of the VRML parser in Open CASCADE Technology (OCCT) version V8_0_0_rc5. This flaw allows denial of service when processing a crafted VRML file due to improper validation of coordIndex values used as array indices.

References

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