Is CVE-2014-3669 in the CISA KEV catalog?

No. CVE-2014-3669 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-3669?

CVE-2014-3669 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2014-3669?

CVE-2014-3669 has an EPSS score of 28.86% (98th percentile), estimating the probability of exploitation in the next 30 days.

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

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

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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.