MEDIUM 5.3 NVD
CVE-2026-93007
A flaw was found in dnsmasq. The TCP DNS service uses a small fixed pool of child processes and does not set a receive timeout on client connections. A remote a
A flaw was found in dnsmasq. The TCP DNS service uses a small fixed pool of child processes and does not set a receive timeout on client connections. A remote attacker can open idle TCP connections to port 53 and occupy the entire pool, preventing new TCP DNS connections and DNSSEC validation that requires TCP fallback. UDP DNS resolution continues, and occupied slots are released after a fixed lifetime.
References
- https://access.redhat.com/security/cve/CVE-2026-93007
- https://bugzilla.redhat.com/show_bug.cgi?id=2536076
This medium severity vulnerability with a CVSS score of 5.3 was published on 2026-10-29 via NVD.
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