CVE-2026-33597

LOW

Published Apr 22, 2026 Modified Apr 24, 2026 CWE-116

Description

PRSD detection denial of service

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CVSS v3.1 Score

3.7

LOW

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

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.01%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-116 CWE-116

Affected Products

Vendor	Product	Versions
powerdns	dnsdist	1.9.0 — 1.9.13
powerdns	dnsdist	2.0.0 — 2.0.4

References

Advisories & Patches

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

Frequently Asked Questions

What is CVE-2026-33597? +

PRSD detection denial of service It has a CVSS v3.1 base score of 3.7 (LOW).

How severe is CVE-2026-33597? +

CVE-2026-33597 has a CVSS v3.1 score of 3.7 out of 10, rated LOW. This is a low-severity vulnerability with limited impact. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-33597? +

CVE-2026-33597 affects products from powerdns, specifically: dnsdist. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-33597? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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