CVE-2016-7398
CVSS v3
9.8
CRITICAL
EPSS Score
6.8 %
exploit probability, as of 2026-10-05
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
Technical details
- Published
- 2019-09-06
Frequently asked questions
What is CVE-2016-7398?
A type confusion vulnerability in the merge_param() function of php_http_params.c in PHP's pecl-http extension 3.1.0beta2 (PHP 7) and earlier as well as 2.6.0beta2 (PHP 5) and earlier allows attackers to crash PHP and possibly execute arbitrary code via crafted HTTP requests.
Is CVE-2016-7398 actively exploited?
Active exploitation of CVE-2016-7398 has not been confirmed. Its EPSS score was 6.8% on 2026-10-05, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2016-7398?
CVE-2016-7398 has a CVSS v3 base score of 9.8 (CRITICAL severity).
Is CVE-2016-7398 affecting your environment?
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