Dashboard / CVE-2026-123599

CVE-2026-123599

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 73/100
Published: 2026-11-08 Modified: 2026-11-13 First seen: 2026-11-08 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: X
AT: Present
VC: None
VI: Low
VA: None

Description

Hickory DNS hickory-proto before 0.26.0-beta.1 and hickory-net before 0.26.2 contain a DNSSEC validation bypass because verify_rrsets() ignores DNS class when partitioning RRsets, so non-IN records skip signature verification yet are marked secure when the IN records verify. Attackers able to supply DNS responses can include forged CH or HS class records, including DS records, to authenticate any DNSKEY and forge child zone responses.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
hickory-dns hickory-dns 0 < 0.26.0-beta.1
hickory-dns hickory-dns 0.26.0-beta.1 < 0.26.2
hickory-dns hickory-dns 0 < 0.26.0-beta.1
hickory-dns hickory-dns 0.26.0-beta.1 < 0.26.2

References & Advisories (2)

Bug Bounty Relevance

73 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.12%
Raw Score 0.001200
Percentile 1.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00120
2026-11-12
0.00120
2026-11-10
0.00120
2026-11-09
0.00120
2026-11-08
0.00120

Intelligence Sources

mitre ref →
nvd ref →

External Links