MEDIUMCVSS v3.1 5.3Vulnerability
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 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.
Properties
- Severity
- MEDIUM
- Nvd fetched at
- 2026-10-29T15:51:37.835109+00:00
- Cvss severity
- MEDIUM
- Cvss score
- 5.3
- Retrieved at
- 2026-10-29T15:52:27+00:00
- Score
- 5.3
- Cvss version
- 3.1
- Last source
- NVD
- Cve id
- CVE-2026-93007
- Cvss vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- First seen by Signal
- 2026-10-29T15:52:27+00:00
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- Published at
- 2026-10-29T13:17:15.890
- Last modified
- 2026-10-29T13:17:16.000
Related Entities (1)
HAS_WEAKNESS (1)
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