What is CVE-2026-13351?

CVE-2026-13351 is a high-severity vulnerability in Zephyrproject-rtos Zephyr, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2026-06-25.

How severe is CVE-2026-13351?

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

Vulnerability in Zephyrproject-rtos Zephyr

CVE-2026-13351

Zephyr's IPv6 network stack can be prevented from receiving or processing future incoming packets by sending a small number of maliciously fragmented IPv6 packets. When such a packet is handled by the fragment-header processing path, the a…

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-rtos Zephyr

Weakness classification (CWE)

CWE-772 — Missing Release of Resource after Effective Lifetime

References

vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-13351?: CVE-2026-13351 is a high-severity vulnerability in Zephyrproject-rtos Zephyr, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2026-06-25.
How severe is CVE-2026-13351?: High severity. CVSS v3 base score is 7.5 out of 10.