CVE-2026-115653
📛 CVE Title
Cortex-M module ports save a preempted user-mode module thread's registers through its unchecked stack pointer in privileged mode
Description
In Eclipse ThreadX versions 6.0.1 through 6.5.2.202603, the PendSV handler of the Cortex-M module ports saves a preempted user-mode module thread's registers in privileged mode at addresses taken from the thread's stack pointer, without checking that pointer against the thread's stack. A user-mode, memory-protected module can thereby write up to nine words, eight of its choosing, or 25 with floating-point state, into memory immediately below any region it may write, and read back what is stored there.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- eclipse
- CVSS severity
- HIGH
- CVSS score
- 7.0 / 10
- CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N- Effective score
- 7.0 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-787,CWE-822 - Reserved
- 2026-10-23
- Published
- 2026-11-02 15:10 UTC
- Last updated
- 2026-11-02 16:17 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/115xxx/CVE-2026-115653.json
- Linked Threat
- CVE-2026-115653 — Cortex-M module ports save a preempted user-mode module thread's registers through its unchecked stack pointer in privileged mode
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
6.0.1 (affected)
|
— |
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
Web references (0)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
No web references attached yet.
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-115653.json.
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