CVE-2015-4642
9.8
CRITICAL · CVSS 3.0 · EPSS 6% (pctl 93)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
The escapeshellarg function in ext/standard/exec.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 on Windows allows remote attackers to execute arbitrary OS commands via a crafted string to an application that accepts command-line arguments for a call to the PHP system function.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 6% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2016-05-16 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| microsoft | windows |
| php | php |
References
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=d2ac264ffea5ca2e85640b6736e0c7cd4ee9a4a9
- http://openwall.com/lists/oss-security/2015/06/18/6
- http://php.net/ChangeLog-5.php
- http://www.securityfocus.com/bid/75290
- http://www.securitytracker.com/id/1032709
- https://bugs.php.net/bug.php?id=69646
- https://security.gentoo.org/glsa/201606-10
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=d2ac264ffea5ca2e85640b6736e0c7cd4ee9a4a9
- http://openwall.com/lists/oss-security/2015/06/18/6
- http://php.net/ChangeLog-5.php
- http://www.securityfocus.com/bid/75290
- http://www.securitytracker.com/id/1032709
- https://bugs.php.net/bug.php?id=69646
- https://security.gentoo.org/glsa/201606-10
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