CVE-2026-33257

HIGH EPSS 39.8%
Published Apr 22, 20262mo ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
39.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-770

Affected Products 7

VendorProductVersionRange
powerdnsauthoritative*≥4.9.0  –  <4.9.14
powerdnsauthoritative*≥5.0.0  –  <5.0.4
powerdnsdnsdist*≥1.9.0  –  <1.9.13
powerdnsdnsdist*≥2.0.0  –  <2.0.4
powerdnsrecursor*≥5.2.0  –  <5.2.9
powerdnsrecursor*≥5.3.0  –  <5.3.6
powerdnsrecursor5.4.0any

References 3

  • docs.powerdns.com https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-2026-05.html
    Vendor Advisory
  • docs.powerdns.com https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html
    Broken LinkVendor Advisory
  • dnsdist.org https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.