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Case File

CVE-2009-3602

HIGH · CVSS 7.5 EPSS 2.98%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-10-13 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.5. It may be remotely exploitable.

CVE
CVE-2009-3602
Severity
HIGH
CVSS
7.5
EPSS
2.98%

Original NVD Description

Unbound before 1.3.4 does not properly verify signatures for NSEC3 records, which allows remote attackers to cause secure delegations to be downgraded via DNS spoofing or other DNS-related attacks in conjunction with crafted delegation responses.