What’s Vulnerable › Vulnerabilities
CVE-2026-42254
- Severity: medium (CVSS 4.0 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-26 · updated 2026-10-26
- Weakness: CWE-706
Description
Hickory DNS hickory-recursor 0.1 through 0.25.2 allows cross-zone poisoning because cached data is not directly associated with a query that triggered a response.
Affected products
- Hickory Project Hickory DNS: from 0.1 before 0.26 — fixed in 0.26
How to fix
Upgrade to a fixed version: Hickory Project Hickory DNS 0.26. Check the vendor advisory for mitigations.
References
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