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Case File

CVE-2016-6290

CRITICAL · CVSS 9.8 EPSS 5.48%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2016-07-25 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.8. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2016-6290
Severity
CRITICAL
CVSS
9.8
EPSS
5.48%

Original NVD Description

ext/session/session.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly maintain a certain hash data structure, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via vectors related to session deserialization.