CVE-2026-42000
Analyzed Analyzed - Analysis Complete
Insufficient Validation of Names During AXFR in Open-Xchange

Publication date: 2026-05-21

Last updated on: 2026-05-26

Assigner: Open-Xchange

Description
Insufficient Validation of Names During AXFR
CVSS Scores
EPSS Scores
Probability:
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Meta Information
Published
2026-05-21
Last Modified
2026-05-26
Generated
2026-06-10
AI Q&A
2026-05-21
EPSS Evaluated
2026-06-09
NVD
CVE-2026-42000
EUVD
EUVD-2026-31261
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
powerdns authoritative From 5.0.0 (inc) to 5.0.5 (exc)
powerdns authoritative to 4.9.15 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Attack-Flow Graph
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Executive Summary

This vulnerability involves insufficient validation of names during the AXFR process. AXFR is a DNS zone transfer mechanism, and improper validation can lead to security issues.

Impact Analysis

The vulnerability can impact you by allowing an attacker to cause integrity issues, as indicated by the CVSS score showing high impact on integrity. This could lead to unauthorized modification or manipulation of DNS data during zone transfers.

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