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CVE-2016-7398

CRITICALCVSS 9.8/10EPSS 6.80%

Last modified

CVE-2016-7398 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 6.80% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
6.80%

93.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
PhpExt-Http<= 2.5.6
PhpExt-Http>= 3.0.0, <= 3.0.1
PhpExt-Http2.6.0
PhpExt-Http3.1.0

References

Timeline

Published
Last Modified
Status
Modified

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.
How severe is CVE-2016-7398?
CVE-2016-7398 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.80% probability of exploitation in the next 30 days.
How do I fix CVE-2016-7398?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST