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Case File

CVE-2011-5021

HIGH · CVSS 7.5 EPSS 1.47%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2011-12-29 · 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. It may lead to a denial-of-service condition.

CVE
CVE-2011-5021
Severity
HIGH
CVSS
7.5
EPSS
1.47%

Original NVD Description

PHPIDS before 0.7 does not properly implement Regular Expression Denial of Service (ReDoS) filters, which allows remote attackers to bypass rulesets and add PHP sequences to a file via unspecified vectors.