Dashboard / CVE-2026-42004

CVE-2026-42004

LOW
INFO Priority: 0.01 BB Relevance: 57/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network No Auth No Interaction

CVSS Vector Breakdown

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

Description

An attacker can send a crafted EDNS OPT record that will be ignored by DNSdist’s filtering rules, but will be rewritten as a valid OPT record when EDNS Client Subnet is inserted, causing the backend to see the EDNS option(s) that DNSdist did not filter.

Weakness Classification (1)

References & Advisories (1)

Bug Bounty Relevance

57 / 100
✓ Network accessible
✓ No authentication
✓ No user interaction

CVSS Score

3.7 / 10.0 v3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

EPSS — Exploitation Probability

0.22%
Raw Score 0.002250
Percentile 13.2%
Date 2026-10-29

EPSS Trend

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

Intelligence Sources

nvd ref →

External Links