CVE-2014-4721

What it is

The phpinfo implementation in ext/standard/info.c in PHP before 5.4.30 and 5.5.x before 5.5.14 does not ensure use of the string data type for the PHP_AUTH_PW, PHP_AUTH_TYPE, PHP_AUTH_USER, and PHP_SELF variables, which might allow context-dependent attackers to obtain sensitive information from process memory by using the integer data type with crafted values, related to a "type confusion" vulnerability, as demonstrated by reading a private SSL key in an Apache HTTP Server web-hosting environment with mod_ssl and a PHP 5.3.x mod_php.

At a glance

Exploitability

Can be exploited over the network without logging in. Limited direct impact.

Exploit odds

5.9% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2014-07-06 23:55 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 00:10 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 5.9% in the next 30 days (EPSS).
• Severity: 2.6 LOW (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2014-07-06 23:55 UTC

Last modified

2026-06-17 00:10 UTC

Exploit probability

5.9% · EPSS, next 30 days

Weakness

CWE-200 · Information exposure

Record status

Modified

Affected

• PHP < 5.3.29
• PHP < 5.4.30
• PHP < 5.5.14
• Debian Linux 7.0
• Debian Linux 8.0

Attack profile CVSS 2.0 · 2.6

Attack vector

Network

Complexity

High

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2014-4721.md and follow it. Check whether this project is affected by CVE-2014-4721. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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