CVE Explorer
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 hostname's final label is shorter than 7 bytes (e.g. names ending in .org, .com, .net, .io, or a trailing dot), the comparison reads 1-2 bytes past the string's NUL terminator.
The hostname (query) is the caller-supplied name passed through the standard getadd
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"collectionURL":"https://github.com/zephyrproject-rtos/zephyr","defaultStatus":"unaffected","packageName":"zephyr","product":"zephyr","programFiles":["subsys/net/lib/dns/resolve.c"],"vendor":"zephyrproject","versions":[{"lessThan":"4.5.0","status":"affected","version":"1.10.0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:772ba2c4a5929a91606c541c5a86548135e95fa7e94961fcaba698ae7dd759d5 · sha256:d5e54c91f5c22cb4… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":3.7,"baseSeverity":"LOW","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:772ba2c4a5929a91606c541c5a86548135e95fa7e94961fcaba698ae7dd759d5 · sha256:d5e54c91f5c22cb4… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"bounds","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:772ba2c4a5929a91606c541c5a86548135e95fa7e94961fcaba698ae7dd759d5 · sha256:d5e54c91f5c22cb4… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"Fix commit","tags":["patch"],"url":"https://github.com/zephyrproject-rtos/zephyr/commit/448a21da12c9ea28f7fd12c6894e03a987b17a27"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:772ba2c4a5929a91606c541c5a86548135e95fa7e94961fcaba698ae7dd759d5 · sha256:d5e54c91f5c22cb4… · /containers/cna/references/0
{"name":"GHSA-76jh-3j5f-9vq4","url":"https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-76jh-3j5f-9vq4"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:772ba2c4a5929a91606c541c5a86548135e95fa7e94961fcaba698ae7dd759d5 · sha256:d5e54c91f5c22cb4… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.