CVE-2024-56946

Name: CVE-2024-56946
Creator: NVD / NIST
Published: 2025-02-03T20:15:33.743+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2024-56946 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

0.41%

32.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-248

Affected Software

Vendor	Product	Versions
Technitium	Dnsserver	< 13.3

References

Timeline

Published: Feb 3, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-56946?

How severe is CVE-2024-56946?

CVE-2024-56946 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2024-56946?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-56946?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST