CVE-2026-0398

MEDIUM EPSS 32.5%
Published Feb 9, 20264mo ago · Modified Apr 20, 20262mo ago
5.3 CVSS 3.1
Medium
Find Similar
Published Feb 9, 2026 4mo ago
Last Modified Apr 20, 2026 2mo ago

Description

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability Low

Threat Intelligence

EPSS Exploit Probability
32.5% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-770

Affected Products 3

VendorProductVersionRange
powerdnsrecursor*≥5.1.0  –  <5.1.10
powerdnsrecursor*≥5.2.8  –  <5.2.8
powerdnsrecursor*≥5.3.0  –  <5.3.5

References 1

  • docs.powerdns.com https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-01.html
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.