CVE-2026-92843— Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
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.
NetX Secure 的 TLS 1.3 证书消息解析器中缺少边界检查，使得恶意的 TLS 1.3 服务器能够触发无符号整数下溢，并导致任何处理远程证书消息的对等方发生堆越界读取。该漏洞在认证之前即可被利用，发生在正常握手过程中、证书验证完成之前。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-92843
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
Source: CVE Program / CVE List V5
Vulnerability Description
A missing bounds check in the TLS 1.3 Certificate-message parser of NetX Secure lets a malicious TLS 1.3 server trigger an unsigned-integer underflow and a subsequent heap out-of-bounds read in any peer that processes a remote Certificate message. It is reachable pre-authentication, during the normal handshake, before certificate verification completes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/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
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX - NetX Duo | 0 ~ 6.5.1.202602 | - |
|
II. Public POCs for CVE-2026-92843
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-92843
请登录查看更多情报信息。
Other References for CVE-2026-92843 (1)
Same Patch Batch · Eclipse Foundation · 2026-10-20 · 29 CVEs total
| CVE-2026-113620 | 9.8 CRITICAL | Eclipse ioFog operator WebSocket accepts an unverified JWT |
| CVE-2026-93475 | 9.3 CRITICAL | Out-of-bounds Write via an Unbounded RSA Modulus in NetX Secure X.509 |
| CVE-2026-94018 | 8.8 HIGH | NetX Duo Web HTTP server releases an uninitialized packet pointer on the PUT Content-Lengt |
| CVE-2026-92853 | 8.7 HIGH | Out-of-bounds Read via a Zero-length TLS 1.3 Certificate Message in NetX Secure |
| CVE-2026-94192 | 8.5 HIGH | Module object deallocation can free a live ThreadX kernel object |
| CVE-2026-95109 | 8.5 HIGH | Cortex-A7 module data validation checks only the first address of a caller-supplied range |
| CVE-2026-91186 | 8.4 HIGH | PNG decoder: a duplicate IHDR chunk after IDAT resizes the image after allocation, causing |
| CVE-2026-91041 | 7.8 HIGH | FileX fault-tolerant log replay writes past the destination sector when mounting a crafted |
| CVE-2026-113619 | 7.5 HIGH | Eclipse ioFog renders request templates before authentication |
| CVE-2026-91189 | 7.1 HIGH | GUIX binary resource loader: unvalidated glyph range causes an integer underflow and a hea |
| CVE-2026-95107 | 7.0 HIGH | Module object allocation size overflow corrupts the manager object pool |
| CVE-2026-93003 | 6.9 MEDIUM | NetX Duo Web HTTP server interprets request body content as HTTP header fields |
| CVE-2026-108062 | 6.9 MEDIUM | Pre-authentication OIDC discovery and JWKS fetches run synchronously on the asyncio event |
| CVE-2026-94024 | 6.9 MEDIUM | Module Manager object lookup validates one byte of a module's search name |
| CVE-2026-94023 | 6.9 MEDIUM | Module delete dispatchers do not enforce kernel-object ownership before irreversible delet |
| CVE-2026-95108 | 6.8 MEDIUM | Deleting a user-mode module thread leaks its privileged kernel stack |
| CVE-2026-91059 | 6.8 MEDIUM | JPEG decoder: a duplicate SOF0 after SOS publishes a pixelmap that misreports its own allo |
| CVE-2026-92449 | 6.8 MEDIUM | Binary resource loader: unbounded map_id from a theme file causes a heap out-of-bounds wri |
| CVE-2026-92446 | 6.8 MEDIUM | GUIX binary resource loader reads past the end of a resource, because no length for it eve |
| CVE-2026-97400 | 6.8 MEDIUM | jdmpview / DTFJ reads arbitrary local files and makes arbitrary outbound requests when ope |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Eclipse ThreadX - NetX Duo
-
CVE-2026-93003
NetX Duo Web HTTP server interprets request body content as -
CVE-2026-94018
NetX Duo Web HTTP server releases an uninitialized packet po -
CVE-2026-92853
Out-of-bounds Read via a Zero-length TLS 1.3 Certificate Mes -
CVE-2026-93475
Out-of-bounds Write via an Unbounded RSA Modulus in NetX Sec -
CVE-2026-103416
NetX Duo 6.5.1 TLS1.3 会话控制块越界写入漏洞
Same vendor: Eclipse Foundation
-
CVE-2026-93003
NetX Duo Web HTTP server interprets request body content as -
CVE-2026-95107
Module object allocation size overflow corrupts the manager -
CVE-2026-94202
Module block-pool create validates two of the four parameter -
CVE-2026-95108
Deleting a user-mode module thread leaks its privileged kern -
CVE-2026-94024
Module Manager object lookup validates one byte of a module'
Same weakness: CWE-125
-
CVE-2026-94202
Module block-pool create validates two of the four parameter -
CVE-2026-94024
Module Manager object lookup validates one byte of a module' -
CVE-2026-94023
Module delete dispatchers do not enforce kernel-object owner -
CVE-2026-95109
Cortex-A7 module data validation checks only the first addre -
CVE-2026-92853
Out-of-bounds Read via a Zero-length TLS 1.3 Certificate Mes
V. Comments for CVE-2026-92843
No comments yet