Out-of-bounds Read in Zephyrproject Zephyr
CVE-2026-10657
Zephyr's DNS resolver detects mDNS (.local) queries in dns_resolve_name_internal() (subsys/net/lib/dns/resolve.c) with memcmp(strrchr(query, '.'), ".local", 7), which always reads a fixed 7 bytes from the suffix pointer. When the resolved…
Vulnerability class: Buffer Overflow
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 1.10.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-10657?
- CVE-2026-10657 is a low-severity vulnerability in Zephyrproject Zephyr, classified under Out-of-bounds Read. CVSS score: 3.7/10. Published 2026-07-05.
- How severe is CVE-2026-10657?
- Low severity. CVSS v3 base score is 3.7 out of 10.