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CVE-2026-42480VulnerabilityPublished

VrmlData_Scene::ReadLine · Stack-based Out-of-bounds Read Vulnerability

Source GCVE Database

0
Authoritative record:CVE-2026-42480· Medium 5.5

Not known to be exploited · CVSS 5.5 Medium.

Data as of 27 Oct 2026, 00:50 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

Users should monitor vendor advisories for updates. As this is a local attack vector involving crafted VRML files, restricting access to untrusted VRML content and limiting local user privileges may reduce risk.

Description

A stack-based out-of-bounds read vulnerability exists in the VrmlData_Scene::ReadLine function of the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5. This flaw allows an attacker with local privileges to cause a denial of service by supplying a crafted VRML file that triggers reading beyond the bounds of a fixed-size stack buffer due to improper bounds checking in the quoted-string escape handler.

References

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