CVE-2026-33602

HIGH
MEDIUM Priority: 0.06 BB Relevance: 77/100
Published: 2026-04-22 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

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

Description

A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
powerdns dnsdist 1.9.0 – 1.9.13
powerdns dnsdist 2.0.0 – 2.0.4

Bug Bounty Relevance

77 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

8.2 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.73%
Raw Score 0.007310
Percentile 54.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00731
2026-10-28
0.00731

Intelligence Sources

nvd ref →