CVE-2026-33256

HIGH EPSS 44.6%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w 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
44.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-770

Affected Products 3

VendorProductVersionRange
powerdnsrecursor*≥5.2.0  –  <5.2.9
powerdnsrecursor*≥5.3.0  –  <5.3.6
powerdnsrecursor5.4.0any

References 1

  • docs.powerdns.com https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html
    Broken LinkVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.