VULNERABILITY INTELLIGENCE

CVE-2022-30256

CVSS score7.5 HIGH
EPSS probability0.97%
CISA KEVNot currently listed
Published2022-11-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Description

An issue was discovered in MaraDNS Deadwood through 3.5.0021 that allows variant V1 of unintended domain name resolution. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains. The effects of an exploit would be widespread and highly impactful, because the exploitation conforms to de facto DNS specifications and operational practices, and overcomes current mitigation patches for "Ghost" domain names.

Weakness classification

  • CWE-672: Operation on a Resource after Expiration or Release

Primary references