CVE-2026-115653 (GCVE-0-2026-115653)
Vulnerability from cvelistv5 – Published: 2026-11-02 15:10 – Updated: 2026-11-02 16:17
VLAI
EPSS
VEX
Title
Cortex-M module ports save a preempted user-mode module thread's registers through its unchecked stack pointer in privileged mode
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 16:17 UTC
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Eclipse Foundation | Eclipse ThreadX |
Affected:
6.0.1 , ≤ 6.5.2.202603
(custom)
|
guessed |
Date Public
2026-11-02 15:09
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| Author | Source | Type | Date | Other |
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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