CVE-2024-56946

Denial of service in DNS-over-QUIC in Technitium DNS Server <= v13.2.2 allows remote attackers to...

5.3 Medium

Denial of service in DNS-over-QUIC in Technitium DNS Server <= v13.2.2 allows remote attackers to permanently stop the server from accepting new DNS-over-QUIC connections by triggering unhandled exceptions in listener threads.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.45%Up 0.4 points since Feb 4, 2025

What each source reports

CVE List Score used 5.3

Record: CVE-2024-56946
CVSS 3.1: 5.3 MediumCVSS:3.1/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N
Weakness: CWE-248
Updated: 2026-11-02

EUVDEUVD-2024-53455 5.3

Record: EUVD-2024-53455
CVSS 3.1: 5.3 MediumCVSS:3.1/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-r58r-w68f-vcxj 5.3

Denial of service in DNS-over-QUIC in Technitium DNS Server <= v13.2.2 allows remote attackers to...

Record: GHSA-r58r-w68f-vcxj
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-248
Updated: 2026-11-02

NVD 5.3

Record: CVE-2024-56946
CVSS 3.1: 5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-248
Updated: 2026-11-02

OSV 5.3

Record: CVE-2024-56946
CVSS 3.1: 5.3 MediumCVSS:3.1/AC:L/AV:N/A:L/C:N/I:N/PR:N/S:U/UI:N
Updated: 2026-11-02

Affected products

technitium dnsserver

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-56946 is a medium vulnerability (CVSS 5.3) in Technitium Dnsserver, published February 3, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 38th percentile. No source names a fixed version.