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CVE-2015-8617

CRITICAL

Format string vulnerability in the zend_throw_or_error function in Zend/zend_execute_API.c in PHP 7.x before 7.0.1 allows remote attackers to execute arbitrary code via format string specifiers in a string that is misused as a class name, leading to incorrect error handling.

Published: Jan 19, 2016 Modified: May 6, 2026
CWE-134

CVSS Metrics

CVSSv3
Attack Vector: NETWORK Attack Complexity: LOW Privileges Required: NONE User Interaction: NONE Scope: UNCHANGED Confidentiality Impact: HIGH Integrity Impact: HIGH Availability Impact: HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Products (1)

Vendor Product Version
php php 7.0.1

GitHub Security Advisory GHSA-cvfg-5hfc-wcq7

Format string vulnerability in the zend_throw_or_error function in Zend/zend_execute_API.c in PHP...

Risk Scores

CVSS Score 9.8 / 10
EPSS Score 21.88%

Top 4% most likely to be exploited

Threat Score 45.8 / 100

Data Sources

NVD EPSS GitHub