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CVE-2026-42476

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Open Cascade OCCT是法国Open Cascade公司的一个三维建模与几何计算内核。 Open Cascade OCCT V8_0_0_rc5版本存在缓冲区错误漏洞，该漏洞源于STL ASCII文件解析器中RWStl_Reader::ReadAscii函数存在两个基于堆的越界读取问题，因为Standard_ReadLineBuffer::ReadLine返回的缓冲区在strncasecmp或直接字节访问前未正确验证长度，可能导致拒绝服务或信息泄露。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.11% · P1

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-42476

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Open Cascade OCCT 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Open Cascade OCCT是法国Open Cascade公司的一个三维建模与几何计算内核。 Open Cascade OCCT V8_0_0_rc5版本存在缓冲区错误漏洞，该漏洞源于STL ASCII文件解析器中RWStl_Reader::ReadAscii函数存在两个基于堆的越界读取问题，因为Standard_ReadLineBuffer::ReadLine返回的缓冲区在strncasecmp或直接字节访问前未正确验证长度，可能导致拒绝服务或信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
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II. Public POCs for CVE-2026-42476

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III. Intelligence Information for CVE-2026-42476

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Proof of Concept for CVE-2026-42476 (1)

Same Patch Batch · n/a · 2026-05-01 · 53 CVEs total

CVE-2026-37541 10.0 CRITICAL Open-Vehicle-Monitoring-System-3 安全漏洞
CVE-2026-37531 9.8 CRITICAL Automotive Grade Linux app-framework-main 路径遍历漏洞
CVE-2026-37539 9.8 CRITICAL cannelloni 安全漏洞
CVE-2026-37536 8.8 HIGH Unified Diagnostic Services Support Library in C 安全漏洞
CVE-2026-37552 8.4 HIGH Mix PHP 代码问题漏洞
CVE-2026-37540 8.4 HIGH open-amp 输入验证错误漏洞
CVE-2026-37537 8.1 HIGH Open SAE J1939 输入验证错误漏洞
CVE-2026-37526 7.8 HIGH Automotive Grade Linux app-framework-binder 访问控制错误漏洞
CVE-2026-37525 7.8 HIGH Automotive Grade Linux app-framework-binder 安全漏洞
CVE-2026-37554 7.5 HIGH Vanetza 安全漏洞
CVE-2026-7598 7.3 HIGH libssh2 userauth.c userauth_password integer overflow
CVE-2026-37532 7.1 HIGH Automotive Grade Linux agl-service-can-low-level 安全漏洞
CVE-2026-37535 7.1 HIGH ISO-TP (ISO 15765-2) Support Library in C 缓冲区错误漏洞
CVE-2026-37503 6.9 MEDIUM V2Board 跨站脚本漏洞
CVE-2026-37504 5.3 MEDIUM V2Board 安全漏洞
CVE-2026-7536 5.3 MEDIUM Open5GS BSF pcfBindings bsf_sess_add_by_ip_address denial of service
CVE-2026-7580 5.3 MEDIUM Exiftool JPEG/QuickTime/MOV/MP4 GM.pm Process_mrld code injection
CVE-2026-37505 4.9 MEDIUM V2Board SQL注入漏洞
CVE-2026-7578 4.7 MEDIUM MacCMS Pro Plugin Installation add.html install unrestricted upload
CVE-2026-7587 4.3 MEDIUM Open5GS AMF nsmf-handler.c amf_nsmf_pdusession_handle_update_sm_context denial of service

Showing top 20 of 53 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

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