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CVE-2026-30802— Out-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.

Quick assessment

Affected
RTI Connext Micro
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 Micro是美国RTI公司的一款应用服务器软件。 RTI Connext Micro 4.0.0版本至4.3.0之前版本存在缓冲区错误漏洞，该漏洞源于Core Libraries组件存在越界读取，可能导致缓冲区过度读取。

CVSS 8.8 · High EPSS 0.43% · P35

Affected Version Matrix 2

VendorProduct Version RangeStatus
RTI Connext Micro 4.0.0< 4.3.0 affected
2.4.5< 2.4.* affected
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I. Basic Information for CVE-2026-30802

Vulnerability Information
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Vulnerability Title
Out-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers.
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds Read vulnerability in RTI Connext Micro (Core Libraries) allows Overread Buffers. This issue affects Connext Micro: from 4.0.0 before 4.3.0, from 2.4.5 before 2.4.*.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
RTI Connext Micro 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
RTI Connext Micro是美国RTI公司的一款应用服务器软件。 RTI Connext Micro 4.0.0版本至4.3.0之前版本存在缓冲区错误漏洞，该漏洞源于Core Libraries组件存在越界读取，可能导致缓冲区过度读取。
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 Micro 4.0.0 ~ 4.3.0 -

II. Public POCs for CVE-2026-30802

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III. Intelligence Information for CVE-2026-30802

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Same Patch Batch · RTI · 2026-06-17 · 8 CVEs total

CVE-2026-7300 8.8 HIGH Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') vulnerability in RT
CVE-2026-30803 8.8 HIGH Integer Underflow (Wrap or Wraparound) vulnerability in RTI Connext Micro (Core Libraries)
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 Micro
Same vendor: RTI
Same weakness: CWE-125

V. Comments for CVE-2026-30802

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