Zephyr mbox_send TOCTOU allows userspace to leak kernel memory (CVE-2026-8728)
Security Advisory
CVE-2026-8728
High
Zephyr Project
Affected:
- Zephyr >= 3.0.0, < 4.4.2
Fixed in:
- 4.4.2
Referenced CVEs:
CVE-2026-9728 · 6.4
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