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CVE-2026-39155

Knot DNS

Beschreibung

Knot DNS before 3.4.10 and 3.5.x before 3.5.4 contains a vulnerability in mod-onlinesign where the next NSEC owner name can be computed incorrectly. This can create an overly broad authenticated denial interval, allowing downstream validating resolvers using aggressive negative caching to synthesize negative answers for legitimate names and causing resolver-side denial of service.

CVSS 6.5EPSS 0.15%Risiko 0.66
Quelle öffnen
Veröffentlicht
2026-07-23 21:17:04
Betroffene Versionen
<3.4.10, <3.5.4
Typ
Kritische Software
Zuletzt geändert
2026-07-30 19:32:25
Vektor
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H