What is CVE-2023-30464?

CVE-2023-30464 is a high-severity vulnerability in Coredns.io Coredns, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2024-09-18.

How severe is CVE-2023-30464?

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

Vulnerability in Coredns.io Coredns

CVE-2023-30464

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

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:H/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.6th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 33.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Coredns.io Coredns

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168ba (Third Party Advisory)

Frequently asked questions

What is CVE-2023-30464?: CVE-2023-30464 is a high-severity vulnerability in Coredns.io Coredns, classified under Authentication Bypass by Spoofing. CVSS score: 7.5/10. Published 2024-09-18.
How severe is CVE-2023-30464?: High severity. CVSS v3 base score is 7.5 out of 10.