CVE-2021-38435— RTI Connext DDS Professional and Connext DDS Secure Incorrect Calculation of Buffer Size
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I. Basic Information for CVE-2021-38435
Vulnerability Information
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Vulnerability Title
RTI Connext DDS Professional and Connext DDS Secure Incorrect Calculation of Buffer Size
Source: NVD (National Vulnerability Database)
Vulnerability Description
RTI Connext DDS Professional and Connext DDS Secure Versions 4.2x to 6.1.0 not correctly calculate the size when allocating the buffer, which may result in a buffer overflow.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
缓冲区大小计算不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Connext Dds 多款产品缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Real-Time Innovations Connext Dds Professional和Connext Dds Secure都是美国Real-Time Innovations公司的产品。Connext Dds Professional是一个旨在满足自主系统苛刻连接要求的软件框架。Connext Dds Secure是一个可信软件连接框架。用于构建和保护系统系统。 Real-Time Innovations Connext Dds Professional和Connext Dds Secure 存在缓
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 |
|---|---|---|---|---|
| RTI | Connext DDS Professional | 4.2x ~ 6.1.0 | - | |
| RTI | Connext DDS Secure | 4.2x ~ 6.1.0 | - |
II. Public POCs for CVE-2021-38435
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2021-38435
请登录查看更多情报信息。
- https://support.rti.com/s/login/?ec=302&startURL=%2Fs%2Fx_refsource_CONFIRM
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-38435
Same Patch Batch · RTI · 2022-05-05 · 4 CVEs total
| CVE-2021-38487 | 8.2 HIGH | Potential Network Amplification and Information Exposure in RTI Connext Professional and C |
| CVE-2021-38427 | 6.6 MEDIUM | RTI Connext DDS Professional and Connext DDS Secure Stack-based Buffer Overflow |
| CVE-2021-38433 | 6.6 MEDIUM | RTI Connext DDS Professional and Connext DDS Secure Stack-based Buffer Overflow |
IV. Related Vulnerabilities
Same vendor: RTI
- CVE-2025-14543
Improper Restriction of XML External Entity Reference vulner - CVE-2026-4374
Improper Restriction of XML External Entity Reference vulner - CVE-2026-2394
Buffer Over-read vulnerability in RTI Connext Professional ( - CVE-2025-10450
Exposure of Private Personal Information to an Unauthorized - CVE-2025-8410
Use After Free vulnerability in RTI Connext Professional (Se
Same weakness: CWE-131
V. Comments for CVE-2021-38435
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