An issue in Technitium through v13.2.2 enables attackers to conduct a DNS cache poisoning attack and inject fake responses by reviving the birthday attack.
Conclusion & alert: CVE-2024-56089 is rated Low Risk (33.5/100): CVSS High severity, with low exploitation likelihood (EPSS 0.03%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-04-29 | 0.05% | 0.03% | -0.02% |
| 2 | 2026-04-02 | 0.03% | 0.05% | +0.02% |
| 3 | 2025-12-02 | — | 0.03% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| technitium | dnsserver | <= 13.2.2 | cpe:2.3:a:technitium:dnsserver:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://github.com/TechnitiumSoftware/DnsServer/blob/master/CHANGELOG.md#version-134 | Release Notes |
| https://technitium.com/dns/ | Product |