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CVE-2015-4147

HIGH severity · CVSS 7.5 · CWE-19
7.5CVSS HIGH

Summary

The SoapClient::__call method in ext/soap/soap.c in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 does not verify that __default_headers is an array, which allows remote attackers to execute arbitrary code by providing crafted serialized data with an unexpected data type, related to a "type confusion" issue.

Impact & exploitability

Attack vectorNetwork
Attack complexityLow
Privileges required
User interaction
Confidentiality impact
Integrity impact
Availability impact
Exploit probability (EPSS)48%

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products we track (1)

PHP

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: http://openwall.com/lists/oss-security/2015/06/01/4 ↗

Last checked: Wed, 10 Jun 2026 22:18:30 UTC