FKIE_CVE-2026-42476

Vulnerability from fkie_nvd - Published: 2026-05-01 15:16 - Updated: 2026-05-01 19:16
Severity
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 exist in RWStl_Reader::ReadAscii because buffers returned by Standard_ReadLineBuffer::ReadLine() are not properly length-validated before strncasecmp or direct byte access. User-assisted attackers can trigger these issues by persuading a victim to open a crafted STL file with extremely short lines, resulting in a denial of service or possible information disclosure.
References
cve@mitre.orghttps://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94aThird Party Advisory
Impacted products
Vendor Product Version
opencascade open_cascade_technology *
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
opencascade open_cascade_technology 8.0.0
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.