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CVE-2026-103416

Quick assessment

Affected
Eclipse Foundation Eclipse ThreadX - NetX Duo
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.

在 Eclipse ThreadX NetX Duo 6.5.1.202602 版本中，TLS 1.3 握手消息缓存存在越界写入漏洞。该漏洞允许尺寸超过缓存容量的握手消息写入越界数据，进而覆盖会话控制块中的指针。恶意或已遭篡改的服务器可在证书认证完成前，促使 TLS 1.3 客户端产生此类消息，从而无需提供服务器证书即可触发该漏洞。

CVSS 9.3 · Critical
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I. Basic Information for CVE-2026-103416

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Out-of-bounds write via the TLS 1.3 handshake message cache in NetX Duo in Eclipse ThreadX NetX Duo 6.5.1.202602 allows a handshake message larger than the cache writes past it and on into the rest of the session control block, which holds pointers. A malicious or compromised server can make a TLS 1.3 client produce such a message before certificate authentication completes, so no server certificate is needed to reach it.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse ThreadX - NetX Duo 0 ~ 6.5.1.202602 -

II. Public POCs for CVE-2026-103416

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III. Intelligence Information for CVE-2026-103416

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Other References for CVE-2026-103416 (2)

IV. Related Vulnerabilities

Same product: Eclipse ThreadX - NetX Duo
Same vendor: Eclipse Foundation
Same weakness: CWE-787

V. Comments for CVE-2026-103416

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