DNSdist Multiple DoS Vulnerabilities CVSS 7.5
Summary
CERT-Bund published security advisory WID-SEC-2026-1230 on 21 April 2026 disclosing multiple denial-of-service vulnerabilities in Open Source DNSdist versions below 1.9.13 and 2.0.4. The vulnerabilities carry a CVSS Base Score of 7.5 (high) and a Temporal Score of 6.5 (medium), with remote exploitation confirmed. DNSdist is a DNS traffic manager deployed as a load balancer, filter, and security gateway in front of DNS servers. No specific mitigations beyond general security practices are detailed in the advisory.
“Ein Angreifer kann mehrere Schwachstellen in DNSdist ausnutzen, um einen Denial of Service Angriff durchzuführen.”
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GovPing monitors CERT-Bund Security Advisories for new data privacy & cybersecurity regulatory changes. Every update since tracking began is archived, classified, and available as free RSS or email alerts — 368 changes logged to date.
What changed
CERT-Bund disclosed multiple DoS vulnerabilities in Open Source DNSdist affecting versions below 1.9.13 and 2.0.4. The vulnerabilities carry a CVSS Base Score of 7.5 (high) with a CVSS Temporal Score of 6.5 (medium), and remote attack is confirmed possible.
Organizations running DNSdist as a DNS proxy, load balancer, or security gateway should identify their installed version and upgrade to 1.9.13 or 2.0.4 or later. Given the CVSS score and confirmed remote exploitability, unpatched DNS infrastructure is at elevated risk of service disruption, making this a priority for network and infrastructure security teams.
Archived snapshot
Apr 22, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
[WID-SEC-2026-1230] DNSdist: Mehrere Schwachstellen ermöglichen Denial of Service CVSS Base Score 7.5 (hoch) CVSS Temporal Score 6.5 (mittel) Remoteangriff ja Datum 21.04.2026 Stand 22.04.2026 Mitigation ja
Betroffene Systeme
Betriebssystem
- Sonstiges
Produktbeschreibung
DNSdist ist ein DNS-Traffic-Manager, der als Load-Balancer, Filter und Sicherheits-Gateway vor DNS-Servern eingesetzt wird
Produkte
21.04.2026
- Open Source DNSdist <1.9.13
- Open Source DNSdist <2.0.4
Angriff
Angriff
Ein Angreifer kann mehrere Schwachstellen in DNSdist ausnutzen, um einen Denial of Service Angriff durchzuführen. CVE Informationen Versionshistorie Feedback zum Advisory geben
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