What is CVE-2026-5072?

CVE-2026-5072 is a medium-severity vulnerability in Zephyrproject-rtos Zephyr, classified under CWE-1335. CVSS score: 6.5/10. Published 2026-05-22.

How severe is CVE-2026-5072?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Zephyrproject-rtos Zephyr

CVE-2026-5072

A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTP_MSG_MANAGEMENT message to set an unvalidated negative log_announce_i…

EPSS: 0.001 (17.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject-rtos Zephyr

Weakness classification (CWE)

CWE-1335

References

vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-5072?: CVE-2026-5072 is a medium-severity vulnerability in Zephyrproject-rtos Zephyr, classified under CWE-1335. CVSS score: 6.5/10. Published 2026-05-22.
How severe is CVE-2026-5072?: Medium severity. CVSS v3 base score is 6.5 out of 10.