CVE-2026-33261

MEDIUM EPSS 13.5%
Published Apr 22, 20262mo ago · Modified Jun 17, 20262w ago
5.9 CVSS 3.1
Medium
Find Similar
Published Apr 22, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

Description

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.

CVSS Details

Base Score
5.9
Exploitability
2.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
13.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-353

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.