HIGH 7.0 NVD
CVE-2026-115653
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
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.
References
- https://github.com/eclipse-threadx/threadx/security/advisories/GHSA-c38r-v552-gh5g
- https://gitlab.eclipse.org/security/cve-assignment/-/work_items/503
This high severity vulnerability with a CVSS score of 7.0 was published on 2026-11-02 via NVD.
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