What is CVE-2023-28456?

CVE-2023-28456 is a high-severity vulnerability in Technitium Dnsserver, classified under CWE-406. CVSS score: 7.5/10. Published 2024-09-18.

How severe is CVE-2023-28456?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Technitium Dnsserver

CVE-2023-28456

An issue was discovered in Technitium through 11.0.2. It enables attackers to launch amplification attacks (3 times more than other "golden model" software like BIND) and cause potential DoS.

Published 2024-09-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.005 (44.5th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Technitium Dnsserver

Weakness classification (CWE)

CWE-406

References

technitium.com/dns/ (Product)
gist.github.com/idealeer/89947ca07836fd0f7e9761198ca9a0f3 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-28456?: CVE-2023-28456 is a high-severity vulnerability in Technitium Dnsserver, classified under CWE-406. CVSS score: 7.5/10. Published 2024-09-18.
How severe is CVE-2023-28456?: High severity. CVSS v3 base score is 7.5 out of 10.