CVE-2026-7300— Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.
Quick assessment
Affected
RTI Connext Professional
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.
RTI connext professional是美国RTI公司的一套实时数据通信中间件。 RTI connext professional存在缓冲区错误漏洞，该漏洞源于Web Integration Service组件中存在缓冲区溢出，可能导致过滤失败。以下版本受到影响：7.4.0版本至7.之前版本、7.0.0版本至7.3.1.3之前版本和6.1.2版本至6.1.之前版本。
Possible ATT&CK Techniques 2 AI
T1203 · Exploitation for Client Execution T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| RTI | Connext Professional | 7.4.0< 7.7.0.1 |
affected |
7.0.0< 7.3.1.3 |
affected | ||
6.1.2< 6.1.* |
affected |
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I. Basic Information for CVE-2026-7300
Vulnerability Information
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Vulnerability Title
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow.
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RTI Connext Professional (Web Integration Service) allows Filter Failure through Buffer Overflow. This issue affects Connext Professional: from 7.4.0 before 7.7.0.1, from 7.0.0 before 7.3.1.3, from 6.1.2 before 6.1.*.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
RTI connext professional 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RTI connext professional是美国RTI公司的一套实时数据通信中间件。 RTI connext professional存在缓冲区错误漏洞，该漏洞源于Web Integration Service组件中存在缓冲区溢出，可能导致过滤失败。以下版本受到影响：7.4.0版本至7.*之前版本、7.0.0版本至7.3.1.3之前版本和6.1.2版本至6.1.*之前版本。
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 Professional | 7.4.0 ~ 7.7.0.1 | - |
|
II. Public POCs for CVE-2026-7300
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · RTI · 2026-06-17 · 8 CVEs total
| CVE-2026-30803 | 8.8 HIGH | Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries) |
| CVE-2026-30802 | 8.8 HIGH | Out-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buf |
| CVE-2026-3894 | 8.2 HIGH | Out-of-bounds Read vulnerability in RTI Connext Professional (Core Libraries) allows Overr |
| CVE-2026-2467 | 8.2 HIGH | Heap-based Buffer Overflow vulnerability in RTI Connext Professional (Core Libraries) allo |
| CVE-2026-30799 | 6.1 MEDIUM | Missing Authentication for Critical Function vulnerability in RTI Connext Professional (Se |
| CVE-2026-2675 | 6.0 MEDIUM | Missing Authentication for Critical Function vulnerability in RTI Connext Professional (Se |
| CVE-2026-2674 | 4.8 MEDIUM | Out-of-bounds Write vulnerability in RTI Connext Professional (Queueing Service,Core Libra |
IV. Related Vulnerabilities
Same product: Connext Professional
-
CVE-2026-18626
Out-of-bounds Read vulnerability in RTI Connext Professional -
CVE-2026-18462
Integer Overflow or Wraparound, Improper Access Control vuln -
CVE-2026-18461
Use of Externally-Controlled Format String vulnerability in -
CVE-2026-18460
Off-by-one Error, Out-of-bounds Write vulnerability in RTI C -
CVE-2026-18459
Incorrect Calculation vulnerability in RTI Connext Professio
Same vendor: RTI
-
CVE-2026-18626
Out-of-bounds Read vulnerability in RTI Connext Professional -
CVE-2026-18462
Integer Overflow or Wraparound, Improper Access Control vuln -
CVE-2026-18461
Use of Externally-Controlled Format String vulnerability in -
CVE-2026-18460
Off-by-one Error, Out-of-bounds Write vulnerability in RTI C -
CVE-2026-18459
Incorrect Calculation vulnerability in RTI Connext Professio
Same weakness: CWE-120
-
CVE-2026-15340
Savannah lwIP SMTP client Classic Buffer Overflow -
CVE-2026-19570
Out-of-bounds write in LE Audio Broadcast Sink when copying -
CVE-2026-82895
Multiple vulnerabilities affect the Sniffer component as par -
CVE-2026-84198
Multiple vulnerabilities affect the Sniffer component as par -
CVE-2026-84246
Multiple vulnerabilities affect the Sniffer component as par
V. Comments for CVE-2026-7300
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