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CVE-2018-7584

CriticalCVSS 9.8 / 10
Published Mar 1, 2018·Last modified Apr 16, 2026
Affected Components(0)

No affected components available

Description

In PHP through 5.6.33, 7.0.x before 7.0.28, 7.1.x through 7.1.14, and 7.2.x through 7.2.2, there is a stack-based buffer under-read while parsing an HTTP response in the php_stream_url_wrap_http_ex function in ext/standard/http_fopen_wrapper.c. This subsequently results in copying a large string.

Risk Scores
Base Score
9.8

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.

Threat Intelligence
9.6

Active exploitation in the wild has been confirmed. Immediate patching or mitigation is required.

EPSS
87.61%

The exploit probability is critical. The vulnerability is very likely to be exploited in the next 30 days.

Exploit
Functional

A functional exploit is available for this vulnerability (1 exploit found).

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