CVE-2026-115653
HIGH
MEDIUM
Priority: 0.01
BB Relevance:
39/100
Published: 2026-11-02
Modified: 2026-11-02
First seen: 2026-11-02
Status: active
Attack Surface
Low Complexity
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
X
AT:
None
VC:
Low
VI:
High
VA:
High
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.
Weakness Classification (2)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| Eclipse Foundation | Eclipse ThreadX | 6.0.1 |
| Eclipse Foundation | Eclipse ThreadX | 6.0.1 |