What is CVE-2026-7007?

CVE-2026-7007 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Divide By Zero. CVSS score: 4.6/10. Published 2026-07-24.

How severe is CVE-2026-7007?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Vulnerability in Zephyrproject Zephyr

CVE-2026-7007

The Zephyr ext2 file system validates the on-disk superblock in ext2_verify_disk_superblock() (subsys/fs/ext2/ext2_impl.c) before completing a mount. The validator checked the magic number, block size, revision and feature flags, but did n…

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject Zephyr — versions 3.5.0

Weakness classification (CWE)

CWE-369 — Divide By Zero

References

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

Frequently asked questions

What is CVE-2026-7007?: CVE-2026-7007 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Divide By Zero. CVSS score: 4.6/10. Published 2026-07-24.
How severe is CVE-2026-7007?: Medium severity. CVSS v3 base score is 4.6 out of 10.