Is CVE-2015-4147 in the CISA KEV catalog?

No. CVE-2015-4147 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-4147?

CVE-2015-4147 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2015-4147?

CVE-2015-4147 has an EPSS score of 12.27% (96th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2015-4147

HIGHEPSS 96th pctl

7.5

CVSS v2

NVD

Description

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.

CWE-19

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

12.27%probability of exploitation in 30 days

96thpercentile

Very high risk: more likely to be exploited than 96% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.