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Case File

CVE-2016-4540

CRITICAL · CVSS 9.8 EPSS 6.23%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-05-22 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2016-4540
Severity
CRITICAL
CVSS
9.8
EPSS
6.23%

Original NVD Description

The grapheme_stripos function in ext/intl/grapheme/grapheme_string.c in PHP before 5.5.35, 5.6.x before 5.6.21, and 7.x before 7.0.6 allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a negative offset.