Review reviewHigh

CVE-2026-42000

PowerDNS Authoritative, authoritative

CVE-2026-42000 affects PowerDNS Authoritative, authoritative. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS
8.6
EPSS
0.24%
15.4% percentile
CISA KEV
Not listed
Published
2026.05.21
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.24%
Technical severityCVSS 8.6

Vulnerability overview

CVE-2026-42000 affects PowerDNS Authoritative, authoritative. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product
PowerDNS Authoritative, authoritative
Affected versions
>= 4.9.0 < 4.9.15, >= 5.0.0 < 5.0.5
Fixed versions
4.9.15, 5.0.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that PowerDNS Authoritative, authoritative and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE
CWE-77
CVE-2026-42000 — PowerDNS Authoritative, authoritative | SECUFOCUS NOW