Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-95108— Deleting a user-mode module thread leaks its privileged kernel stack

Quick assessment

Affected
Eclipse Foundation Eclipse ThreadX
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.

用户模式 ThreadX 模块中的每一个逻辑线程，会从模块管理器（Module Manager）的共享对象池中消耗两次内存分配，而非一次。具体过程如下：模块首先通过 请求一个 控制块；随后，函数 会再进行一次分配，为特权级内核栈分配 字节，该栈用于执行该线程的系统调用，并将此分配记录在控制块中。这两次分配均源自 ，且都被链接到该模块的分配列表上。 然而，模块管理器的线程删除分发器（thread-delete dispatcher）仅释放了第一次分配的对象。内核栈则一直保留在已分配状态，直到整个模块被停止。因此，若某

CVSS 6.8 · Medium

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-95108

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Deleting a user-mode module thread leaks its privileged kernel stack
Source: CVE Program / CVE List V5
Vulnerability Description
One logical thread of a user-mode ThreadX module costs the Module Manager's shared object pool two allocations, not one. The module asks for a `TX_THREAD` control block through `txm_module_object_allocate`; `_txm_module_manager_thread_create` then takes a second allocation of `TXM_MODULE_KERNEL_STACK_SIZE` bytes for the privileged kernel stack that thread's system calls run on, and records it in the control block. Both come from `_txm_module_manager_object_pool` and both are linked onto the module's allocation list. The Module Manager's thread-delete dispatcher released only the first. The kernel stack stayed allocated until the whole module was stopped, so a module that creates, terminates and deletes threads in a loop — every state transition valid, every service returning `TX_SUCCESS` — removed a fixed block from a finite pool shared by the manager and by every other loaded module, on every cycle, for as long as it stayed loaded. Once the pool is exhausted, no memory-protected module can create any kernel object and no user-mode module thread can be created anywhere in the system. Vulnerable function: `_txm_module_manager_tx_thread_delete_dispatch`, in `common_modules/module_manager/inc/txm_module_manager_dispatch.h`.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Eclipse Foundation Eclipse ThreadX 6.0.1 ~ 6.5.1.202602a -

II. Public POCs for CVE-2026-95108

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-95108

请登录查看更多情报信息。

Other References for CVE-2026-95108 (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-2026-92843 8.7 HIGH Out-of-bounds Read via the TLS 1.3 Certificate extensions_length in NetX Secure
CVE-2026-95109 8.5 HIGH Cortex-A7 module data validation checks only the first address of a caller-supplied range
CVE-2026-94192 8.5 HIGH Module object deallocation can free a live ThreadX kernel object
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-2026-94023 6.9 MEDIUM Module delete dispatchers do not enforce kernel-object ownership before irreversible delet
CVE-2026-94024 6.9 MEDIUM Module Manager object lookup validates one byte of a module's search name
CVE-2026-108062 6.9 MEDIUM Pre-authentication OIDC discovery and JWKS fetches run synchronously on the asyncio event
CVE-2026-93003 6.9 MEDIUM NetX Duo Web HTTP server interprets request body content as HTTP header fields
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
Same vendor: Eclipse Foundation
Same weakness: CWE-400

V. Comments for CVE-2026-95108

No comments yet

Leave a comment