CVE-2026-42476Disclosure(opencascade / open_cascade_technology)

LOWCVSS 7.1 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-125

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • open_cascade_technology

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 2 signals
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Affected systems

Products
open_cascade_technology

1 version affected across 1 product

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-01: 2Technical Details · 2026-05-01: 205-01
Signal classification1 categories
Disclosure
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-42476 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 b… https://www.cve.org/CVERecord?id=CVE-2026-42476

    Post summary

    CVE-2026-42476 discloses two heap-based out‑of‑bounds read flaws in OCCT’s STL ASCII parser (RWStl_Reader::ReadAscii); the post provides technical details but no PoC, exploit or patch information.

    00010181
    57.4K followersView on X
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-42476 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 b… https://www.cve.org/CVERecord?id=CVE-2026-42476 ----- Traducción: CVE-2026-42476 Dos… http://infoflow.cloud`

    Post summary

    CVE‑2026‑42476 is disclosed, describing two heap‑based out‑of‑bounds read bugs in Open CASCADE’s STL ASCII parser, with no evidence of exploitation or mitigation steps.

    0000040
    75 followersView on X
CPE platform detail7 entries

7 of 7 entries

PartVendorProductVersionTarget SWTarget HW
Appopencascadeopen_cascade_technology---
Appopencascadeopen_cascade_technology8.0.0--
Appopencascadeopen_cascade_technology8.0.0--
Appopencascadeopen_cascade_technology8.0.0--
Appopencascadeopen_cascade_technology8.0.0--
Appopencascadeopen_cascade_technology8.0.0--
Appopencascadeopen_cascade_technology8.0.0--

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