What’s Vulnerable › Vulnerabilities
CVE-2026-42396: Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-05-21 · updated 2026-07-23
- Weakness: CWE-94
Description
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
Affected products
- PowerDNS Authoritative: from 4.7.0 before 4.9.15; from 5.0.0 before 5.0.5 — fixed in 4.9.15, 5.0.5
How to fix
Upgrade to a fixed version: PowerDNS Authoritative 4.9.15, 5.0.5. Check the vendor advisory for mitigations.
References
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