PT-2026-52390 · Powerdns · Recursor

Nurmukhammyed · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-42387

Mitre

CVSS v3.1

5.9

Medium

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.

Fix

Related Identifiers

CVE-2026-42387

Affected Products

Recursor

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-42387 · Security Note
• https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html · Note