What is CVE-2026-10636?

CVE-2026-10636 is a low-severity vulnerability in Zephyrproject Zephyr, classified under Use After Free. CVSS score: 3.7/10. Published 2026-06-16.

How severe is CVE-2026-10636?

Low severity. CVSS v3 base score is 3.7 out of 10.

Use After Free in Zephyrproject Zephyr

CVE-2026-10636

In Zephyr's IPv4 IGMP implementation, igmp_send() in subsys/net/ip/igmp.c read the network interface back out of the packet via net_pkt_iface(pkt) after the packet had been handed to net_send_data(). On the successful-send path the packet'…

Vulnerability class: Use-After-Free

EPSS: 0.003 (23.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Zephyrproject Zephyr — versions 2.6.0

Weakness classification (CWE)

CWE-416 — Use After Free

References

vulnerabilities@zephyrproject.org (Patch, patch)
vulnerabilities@zephyrproject.org (Exploit, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2026-10636?: CVE-2026-10636 is a low-severity vulnerability in Zephyrproject Zephyr, classified under Use After Free. CVSS score: 3.7/10. Published 2026-06-16.
How severe is CVE-2026-10636?: Low severity. CVSS v3 base score is 3.7 out of 10.