AUGUST 4, 2026
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Case File

CVE-2022-30256

HIGH · CVSS 7.5 EPSS 0.90% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-11-19 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2022-30256
Severity
HIGH
CVSS
7.5
EPSS
0.90%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)