Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1110 CNY

100%
Buy Us a Coffee

CVE-2026-42000— Insufficient Validation of Names During AXFR

CVSS 6.8 · Medium EPSS 0.00% · P0

Affected Version Matrix 2

VendorProductVersion RangeStatus
PowerDNSAuthoritative4.9.0< 4.9.15affected
5.0.0< 5.0.5affected
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-42000

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Insufficient Validation of Names During AXFR
Source: NVD (National Vulnerability Database)
Vulnerability Description
Insufficient Validation of Names During AXFR
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
PowerDNS Authoritative 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Authoritative是PowerDNS公司的一个DNS服务器软件。 PowerDNS Authoritative存在命令注入漏洞，该漏洞源于AXFR期间名称验证不足。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
PowerDNSAuthoritative 4.9.0 ~ 4.9.15 -

II. Public POCs for CVE-2026-42000

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-42000

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-42000 (1)

Same Patch Batch · PowerDNS · 2026-05-21 · 5 CVEs total

CVE-2026-420017.5 HIGHInsufficient Validation of Autoprimary SOA Queries
CVE-2026-420025.9 MEDIUMConcurrency and locking defects in GSS-TSIG
CVE-2026-423964.9 MEDIUMInsufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
CVE-2026-419994.8 MEDIUMIncorrect Behaviour of Views with TCP PROXY Requests

IV. Related Vulnerabilities

Same product: Authoritative
Same vendor: PowerDNS

V. Comments for CVE-2026-42000

No comments yet

Leave a comment