CVE & CISA-KEV Catalog

CVE-2016-5772

CRITICALEPSS 95th pctl
9.8
CVSS v3
NVD

Description

Double free vulnerability in the php_wddx_process_data function in wddx.c in the WDDX extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via crafted XML data that is mishandled in a wddx_deserialize call.

CWE-415

How to fix

Remediation Available
libapache2-mod-php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
libapache2-mod-php7.0Ubuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-cgiUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-cliUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php5-fpmUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.19USN-3045-1
php7.0Ubuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-cgiUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-cliUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1
php7.0-fpmUbuntu
Fixed in:7.0.8-0ubuntu0.16.04.2USN-3045-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

9.67%probability of exploitation in 30 days
95thpercentile

High risk: more likely to be exploited than 95% of all known CVEs.

References

Exploit1
Vendor Advisory1
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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.