NVD security advisoryHigh
High advisory for In Eclipse ThreadX versions 6
CVE-2026-115653 · Reported 2 Nov 2026
Full advisory details, affected packages, severity context, and original source.
Affected technology
In Eclipse ThreadX versions 6Affected product
Advisory overview
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.