CVE-2014-3669

Exp

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.

Published: 2014-10-29 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2014-3669 is rated High Exploit Risk (74.3/100): CVSS High severity, with high exploitation likelihood (EPSS 55.95%, 98th percentile). 1 public exploit reference(s) are indexed (Exploit-DB). 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.

Public exploit references (Exploit-DB) for CVE-2014-3669

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2014-3669

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 2026-04-29 65.25% 55.95% -9.29%
2 2026-03-29 66.58% 65.25% -1.33%
3 2026-03-04 — 66.58% —

Full EPSS history (44 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2014-3669

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2014-3669

OS Trackers for CVE-2014-3669

vendor priority summary link
gentoo normal CVE-2014-3669: 1 GLSA(s) (201411-04), 1 atom(s) (dev-lang/php); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2014-3669
redhat medium — https://access.redhat.com/security/cve/CVE-2014-3669
suse medium CVE-2014-3669 severity moderate: SUSE including 854 source package names (apache2-mod_php5-5.2.14-0.7.30.62.1, apache2-mod_php5-5.5.14-7.1, …), 1307 product×package rows across 35 product lines (SUSE Enterprise Storage 7.1, SUSE Liberty Linux 7, … (35 product lines)): Fixed 749, Known Not Affected 558. https://www.suse.com/security/cve/CVE-2014-3669/
ubuntu medium CVE-2014-3669 medium priority: Ubuntu including 1 source packages (php5), 5 status rows across 5 suites (lucid, precise, trusty, upstream, utopic): released 5. https://ubuntu.com/security/CVE-2014-3669

Affected software / configurations for CVE-2014-3669

Vendor Product Version Raw CPE
php php <= 5.4.33 cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
php php 5.4.0 cpe:2.3:a:php:php:5.4.0:*:*:*:*:*:*:*
php php 5.4.1 cpe:2.3:a:php:php:5.4.1:*:*:*:*:*:*:*
php php 5.4.2 cpe:2.3:a:php:php:5.4.2:*:*:*:*:*:*:*
php php 5.4.3 cpe:2.3:a:php:php:5.4.3:*:*:*:*:*:*:*
php php 5.4.4 cpe:2.3:a:php:php:5.4.4:*:*:*:*:*:*:*
php php 5.4.5 cpe:2.3:a:php:php:5.4.5:*:*:*:*:*:*:*
php php 5.4.6 cpe:2.3:a:php:php:5.4.6:*:*:*:*:*:*:*
php php 5.4.7 cpe:2.3:a:php:php:5.4.7:*:*:*:*:*:*:*
php php 5.4.8 cpe:2.3:a:php:php:5.4.8:*:*:*:*:*:*:*
php php 5.4.9 cpe:2.3:a:php:php:5.4.9:*:*:*:*:*:*:*
php php 5.4.10 cpe:2.3:a:php:php:5.4.10:*:*:*:*:*:*:*
php php 5.4.11 cpe:2.3:a:php:php:5.4.11:*:*:*:*:*:*:*
php php 5.4.12 cpe:2.3:a:php:php:5.4.12:*:*:*:*:*:*:*
php php 5.4.12 cpe:2.3:a:php:php:5.4.12:rc1:*:*:*:*:*:*
php php 5.4.12 cpe:2.3:a:php:php:5.4.12:rc2:*:*:*:*:*:*
php php 5.4.13 cpe:2.3:a:php:php:5.4.13:*:*:*:*:*:*:*
php php 5.4.13 cpe:2.3:a:php:php:5.4.13:rc1:*:*:*:*:*:*
php php 5.4.14 cpe:2.3:a:php:php:5.4.14:*:*:*:*:*:*:*
php php 5.4.14 cpe:2.3:a:php:php:5.4.14:rc1:*:*:*:*:*:*
php php 5.4.15 cpe:2.3:a:php:php:5.4.15:rc1:*:*:*:*:*:*
php php 5.4.16 cpe:2.3:a:php:php:5.4.16:rc1:*:*:*:*:*:*
php php 5.4.17 cpe:2.3:a:php:php:5.4.17:*:*:*:*:*:*:*
php php 5.4.18 cpe:2.3:a:php:php:5.4.18:*:*:*:*:*:*:*
php php 5.4.19 cpe:2.3:a:php:php:5.4.19:*:*:*:*:*:*:*
php php 5.4.20 cpe:2.3:a:php:php:5.4.20:*:*:*:*:*:*:*
php php 5.4.21 cpe:2.3:a:php:php:5.4.21:*:*:*:*:*:*:*
php php 5.4.22 cpe:2.3:a:php:php:5.4.22:*:*:*:*:*:*:*
php php 5.4.23 cpe:2.3:a:php:php:5.4.23:*:*:*:*:*:*:*
php php 5.4.24 cpe:2.3:a:php:php:5.4.24:*:*:*:*:*:*:*
php php 5.4.25 cpe:2.3:a:php:php:5.4.25:*:*:*:*:*:*:*
php php 5.4.26 cpe:2.3:a:php:php:5.4.26:*:*:*:*:*:*:*
php php 5.4.27 cpe:2.3:a:php:php:5.4.27:*:*:*:*:*:*:*
php php 5.4.28 cpe:2.3:a:php:php:5.4.28:*:*:*:*:*:*:*
php php 5.4.29 cpe:2.3:a:php:php:5.4.29:*:*:*:*:*:*:*
php php 5.4.30 cpe:2.3:a:php:php:5.4.30:*:*:*:*:*:*:*
php php 5.4.31 cpe:2.3:a:php:php:5.4.31:*:*:*:*:*:*:*
php php 5.4.32 cpe:2.3:a:php:php:5.4.32:*:*:*:*:*:*:*
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 5.5.15 cpe:2.3:a:php:php:5.5.15:*:*:*:*:*:*:*
php php 5.5.16 cpe:2.3:a:php:php:5.5.16:*:*:*:*:*:*:*
php php 5.5.17 cpe:2.3:a:php:php:5.5.17:*:*:*:*:*:*:*
php php 5.6.0 cpe:2.3:a:php:php:5.6.0:*:*:*:*:*:*:*
php php 5.6.1 cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*

References for CVE-2014-3669

URL Tags
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=56754a7f9eba0e4f559b6ca081d9f2a447b3f159
http://linux.oracle.com/errata/ELSA-2014-1767.html
http://linux.oracle.com/errata/ELSA-2014-1768.html
http://lists.apple.com/archives/security-announce/2015/Apr/msg00001.html
http://lists.opensuse.org/opensuse-updates/2014-11/msg00024.html
http://lists.opensuse.org/opensuse-updates/2014-11/msg00034.html
http://lists.opensuse.org/opensuse-updates/2015-01/msg00006.html
http://php.net/ChangeLog-5.php
http://rhn.redhat.com/errata/RHSA-2014-1765.html
http://rhn.redhat.com/errata/RHSA-2014-1766.html
http://rhn.redhat.com/errata/RHSA-2014-1767.html
http://rhn.redhat.com/errata/RHSA-2014-1768.html
http://rhn.redhat.com/errata/RHSA-2014-1824.html
http://secunia.com/advisories/59967
http://secunia.com/advisories/60630
http://secunia.com/advisories/60699
http://secunia.com/advisories/61763
http://secunia.com/advisories/61970
http://secunia.com/advisories/61982
http://www.debian.org/security/2014/dsa-3064
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/70611
http://www.ubuntu.com/usn/USN-2391-1
https://bugs.php.net/bug.php?id=68044 Exploit Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1154500
https://support.apple.com/HT204659
cvelogic Threat Intelligence