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.
Conclusion & alert: CVE-2015-4147 is rated High Exploit Risk (76.4/100): CVSS High severity, with high exploitation likelihood (EPSS 48.00%, 98th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-24 | 50.79% | 48.00% | -2.79% |
| 2 | 2026-03-04 | 36.45% | 50.79% | +14.34% |
| 3 | 2026-03-01 | — | 36.45% | — |
Full EPSS history (51 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2015-4147: 1 GLSA(s) (201606-10), 1 atom(s) (dev-lang/php); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-4147 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2015-4147 |
ubuntu
|
medium | CVE-2015-4147 medium priority: Ubuntu including 1 source packages (php5), 5 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): released 5. | https://ubuntu.com/security/CVE-2015-4147 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 7.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.1 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.1:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| apple | mac_os_x | <= 10.10.4 | cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* |
| php | php | <= 5.4.38 | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:*:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha1:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha2:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha3:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha4:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha5:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:alpha6:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:beta1:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:beta2:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:beta3:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:beta4:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:rc1:*:*:*:*:*:* |
| php | php | 5.5.0 | cpe:2.3:a:php:php:5.5.0:rc2:*:*:*:*:*:* |
| php | php | 5.5.1 | cpe:2.3:a:php:php:5.5.1:*:*:*:*:*:*:* |
| php | php | 5.5.2 | cpe:2.3:a:php:php:5.5.2:*:*:*:*:*:*:* |
| php | php | 5.5.3 | cpe:2.3:a:php:php:5.5.3:*:*:*:*:*:*:* |
| php | php | 5.5.4 | cpe:2.3:a:php:php:5.5.4:*:*:*:*:*:*:* |
| php | php | 5.5.5 | cpe:2.3:a:php:php:5.5.5:*:*:*:*:*:*:* |
| php | php | 5.5.6 | cpe:2.3:a:php:php:5.5.6:*:*:*:*:*:*:* |
| php | php | 5.5.7 | cpe:2.3:a:php:php:5.5.7:*:*:*:*:*:*:* |
| php | php | 5.5.8 | cpe:2.3:a:php:php:5.5.8:*:*:*:*:*:*:* |
| php | php | 5.5.9 | cpe:2.3:a:php:php:5.5.9:*:*:*:*:*:*:* |
| php | php | 5.5.10 | cpe:2.3:a:php:php:5.5.10:*:*:*:*:*:*:* |
| php | php | 5.5.11 | cpe:2.3:a:php:php:5.5.11:*:*:*:*:*:*:* |
| php | php | 5.5.12 | cpe:2.3:a:php:php:5.5.12:*:*:*:*:*:*:* |
| php | php | 5.5.13 | cpe:2.3:a:php:php:5.5.13:*:*:*:*:*:*:* |
| php | php | 5.5.14 | cpe:2.3:a:php:php:5.5.14:*:*:*:*:*:*:* |
| php | php | 5.5.18 | cpe:2.3:a:php:php:5.5.18:*:*:*:*:*:*:* |
| php | php | 5.5.19 | cpe:2.3:a:php:php:5.5.19:*:*:*:*:*:*:* |
| php | php | 5.5.20 | cpe:2.3:a:php:php:5.5.20:*:*:*:*:*:*:* |
| php | php | 5.5.21 | cpe:2.3:a:php:php:5.5.21:*:*:*:*:*:*:* |
| php | php | 5.5.22 | cpe:2.3:a:php:php:5.5.22:*:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:alpha1:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:alpha2:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:alpha3:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:alpha4:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:alpha5:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:beta1:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:beta2:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:beta3:*:*:*:*:*:* |
| php | php | 5.6.0 | cpe:2.3:a:php:php:5.6.0:beta4:*:*:*:*:*:* |
| php | php | 5.6.2 | cpe:2.3:a:php:php:5.6.2:*:*:*:*:*:*:* |
| php | php | 5.6.3 | cpe:2.3:a:php:php:5.6.3:*:*:*:*:*:*:* |
| php | php | 5.6.4 | cpe:2.3:a:php:php:5.6.4:*:*:*:*:*:*:* |
| php | php | 5.6.5 | cpe:2.3:a:php:php:5.6.5:*:*:*:*:*:*:* |
| php | php | 5.6.6 | cpe:2.3:a:php:php:5.6.6:*:*:*:*:*:*:* |