What is CVE-2026-10648?

CVE-2026-10648 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 6.2/10. Published 2026-06-29.

How severe is CVE-2026-10648?

Medium severity. CVSS v3 base score is 6.2 out of 10.

NULL pointer dereference in Zephyrproject Zephyr

CVE-2026-10648

mcumgr_serial_process_frag() in subsys/mgmt/mcumgr/transport/src/serial_util.c calls net_buf_reset() on the result of smp_packet_alloc() before checking it for NULL. smp_packet_alloc() uses net_buf_alloc(K_NO_WAIT) against the shared MCUmg…

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject Zephyr — versions 4.4.0

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

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

Frequently asked questions

What is CVE-2026-10648?: CVE-2026-10648 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under NULL Pointer Dereference. CVSS score: 6.2/10. Published 2026-06-29.
How severe is CVE-2026-10648?: Medium severity. CVSS v3 base score is 6.2 out of 10.