CVE-2026-33259

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 45/100
Published: 2026-04-22 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: None
S: Unchanged
C: None
I: Low
A: High

Description

Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
powerdns recursor 5.2.0 – 5.2.9
powerdns recursor 5.4.0

Bug Bounty Relevance

45 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

5.0 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.22%
Raw Score 0.002250
Percentile 13.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00225
2026-10-28
0.00225

Intelligence Sources

nvd ref →