Vulnerability in PHP Ext-Http

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.068 (93.8th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 93.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2016-7398: held from 0.068 to 0.068.

EPSS over last 30 days · oldest: 0.068 · newest: 0.068 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2016-7398?
CVE-2016-7398 is a critical-severity vulnerability in PHP Ext-Http, classified under Incorrect Type Conversion or Cast. CVSS score: 9.8/10. Published 2019-09-06.
How severe is CVE-2016-7398?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2016-7398 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.