CVE & CISA-KEV Catalog

CVE-2014-3669

HIGHEPSS 98th pctl
7.5
CVSS v2
NVD

Description

Integer overflow in the object_custom function in ext/standard/var_unserializer.c in PHP before 5.4.34, 5.5.x before 5.5.18, and 5.6.x before 5.6.2 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an argument to the unserialize function that triggers calculation of a large length value.

CWE-189

How to fix

Remediation Available
libapache2-mod-php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5Ubuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5-cgiUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5-cliUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5-curlUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5-fpmUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1
php5-xmlrpcUbuntu
Fixed in:5.5.9+dfsg-1ubuntu4.5USN-2391-1

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

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

28.86%probability of exploitation in 30 days
98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-1538High10.099%--
CVE-2006-3747High7.696%-Fix
CVE-2007-0071High9.393%--
CVE-2015-3829High10.090%--
CVE-2015-3864High10.087%--
CVE-2015-1539High10.086%--
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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.