Vulnerability in Zephyrproject Zephyr
CVE-2026-10677
The CONFIG_USERSPACE syscall verifier z_vrfy_k_poll() in kernel/poll.c allocates a kernel-side copy of the user-supplied k_poll_event[] via z_thread_malloc() and then validates each event's object handle. Before this fix, validation used K…
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Zephyrproject Zephyr — versions 1.12.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-10677?
- CVE-2026-10677 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 6.5/10. Published 2026-07-21.
- How severe is CVE-2026-10677?
- Medium severity. CVSS v3 base score is 6.5 out of 10.