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Vulnerability record · CVE-2023-30464 · published 18 September 2024

CVE-2023-30464: Coredns.io coredns authentication bypass by spoofing vulnerability

CCoredns.Io · Coredns

CoreDNS through 1.10.1 enables attackers to achieve DNS cache poisoning and inject fake responses via a birthday attack.

7.5 CVSS 3.1 High EPSS 0.41% · top 67.5% CWE-290 · Authentication bypass by spoofing
7.5CVSS 3.1 base score
0.41%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

Description

CoreDNS through 1.10.1 enables attackers to achieve DNS cache poisoning and inject fake responses via a birthday attack.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-32936Coredns.io coredns uncontrolled resource consumption vulnerabilityCoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-HTTPS (DoH) GET path accepts oversized dns= query parameter va…EPSS 0.61%8.7CVE-2026-33190Coredns.io coredns vulnerabilityCoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports (DoT, DoH, DoH3…EPSS 0.53%8.7CVE-2026-32934Coredns.io coredns allocation without limits vulnerabilityCoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the DNS-over-QUIC (DoQ) server can be driven into unbounded goroutine and m…EPSS 0.63%8.2CVE-2026-35579Coredns.io coredns improper authentication vulnerabilityCoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG a…EPSS 0.75%8.2CVE-2026-33489Coredns.io coredns incorrect authorization vulnerabilityCoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the transfer plugin can select the wrong ACL stanza when both a parent zone…EPSS 0.42%7.5CVE-2026-62309Coredns.io coredns null pointer dereference vulnerabilityCoreDNS is a DNS server written in Go. Prior to 1.14.4, a single 28-byte UDP datagram can crash the CoreDNS process when the proxyproto plugin is ena…EPSS 0.66%7.5CVE-2026-26018Coredns.io coredns uncontrolled resource consumption vulnerabilityCoreDNS is a DNS server that chains plugins. Prior to version 1.14.2, a denial of service vulnerability exists in CoreDNS's loop detection plugin tha…EPSS 0.76%7.5CVE-2025-47950Coredns.io coredns allocation without limits vulnerabilityCoreDNS is a DNS server that chains plugins. In versions prior to 1.12.2, a Denial of Service (DoS) vulnerability exists in the CoreDNS DNS-over-QUIC…EPSS 1.2%

Source: NIST National Vulnerability Database (record CVE-2023-30464), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.