What is CVE-2026-11810?

CVE-2026-11810 is a high-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-08-10.

How severe is CVE-2026-11810?

High severity. CVSS v3 base score is 7.5 out of 10.

NULL pointer dereference in Zephyrproject Zephyr

CVE-2026-11810

The UpdateHub firmware-update agent's probe handler (z_impl_updatehub_probe() in subsys/mgmt/updatehub/updatehub.c) parses the JSON metadata returned by the update server into a fixed two-level nested-array struct. After parsing it validat…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject Zephyr — versions 3.7.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

vulnerabilities@zephyrproject.org (patch)
vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-11810?: CVE-2026-11810 is a high-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-08-10.
How severe is CVE-2026-11810?: High severity. CVSS v3 base score is 7.5 out of 10.