CVE-2023-28452

Name: CVE-2023-28452
Creator: NVD / NIST
Published: 2024-09-18T15:15:13.957+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.61%

Last modified Jun 17, 2026

CVE-2023-28452 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. EPSS estimates a 0.61% chance of exploitation in the next 30 days.

Description

An issue was discovered in CoreDNS through 1.10.1. There is a vulnerability in DNS resolving software, which triggers a resolver to ignore valid responses, thus causing denial of service for normal resolution. In an exploit, the attacker could just forge a response targeting the source port of a vulnerable resolver without the need to guess the correct TXID.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.61%

44.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-290

Affected Software

Vendor	Product	Versions
Coredns.Io	Coredns	<= 1.10.1

References

https://coredns.io/Product
https://gist.github.com/idealeer/e41c7fb3b661d4262d0b6f21e12168baThird Party Advisory

Timeline

Published: Sep 18, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-28452?

How severe is CVE-2023-28452?

CVE-2023-28452 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.61% probability of exploitation in the next 30 days.

How do I fix CVE-2023-28452?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-28452?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST