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Case File

CVE-2006-1991

MEDIUM · CVSS 6.4 EPSS 2.19%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2006-04-24 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.4. It may lead to a denial-of-service condition.

CVE
CVE-2006-1991
Severity
MEDIUM
CVSS
6.4
EPSS
2.19%

Original NVD Description

The substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (memory access violation) via an out-of-bounds offset argument.