CVE-2015-0273

Exp

Multiple use-after-free vulnerabilities in ext/date/php_date.c in PHP before 5.4.38, 5.5.x before 5.5.22, and 5.6.x before 5.6.6 allow remote attackers to execute arbitrary code via crafted serialized input containing a (1) R or (2) r type specifier in (a) DateTimeZone data handled by the php_date_timezone_initialize_from_hash function or (b) DateTime data handled by the php_date_initialize_from_hash function.

Published: 2015-03-30 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-0273 is rated High Exploit Risk (74.4/100): CVSS High severity, with high exploitation likelihood (EPSS 60.76%, 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.

Public exploit references (Exploit-DB) for CVE-2015-0273

EDB-ID Source Kind Published Link
36158 exploit_db edb 2015-02-23 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-0273

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 71.15% 60.76% -10.39%
2 2026-05-23 71.56% 71.15% -0.41%
3 2026-05-09 71.56%

Full EPSS history (45 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-0273

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-2015-0273

OS Trackers for CVE-2015-0273

vendor priority summary link
gentoo normal CVE-2015-0273: 1 GLSA(s) (201606-10), 1 atom(s) (dev-lang/php); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-0273
redhat medium https://access.redhat.com/security/cve/CVE-2015-0273
suse high CVE-2015-0273 severity important: SUSE including 799 source package names (apache2-mod_php5-5.5.14-15.1, apache2-mod_php5-5.6.28-1.1, …), 814 product×package rows across 22 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Module for Legacy 15 SP4, … (22 product lines)): Fixed 609, Will Not Fix 158, Known Not Affected 47. https://www.suse.com/security/cve/CVE-2015-0273/
ubuntu medium CVE-2015-0273 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-2015-0273

NVD evaluator notes for CVE-2015-0273

Comment: <a href="http://cwe.mitre.org/data/definitions/416.html">CWE-416: Use After Free</a>

Affected software / configurations for CVE-2015-0273

Vendor Product Version Raw CPE
php php <= 5.4.37 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 5.5.15 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 5.5.18 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 5.6.0 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 5.6.1 cpe:2.3:a:php:php:5.6.1:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

References for CVE-2015-0273

URL Tags
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=71335e6ebabc1b12c057d8017fd811892ecdfd24
http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00004.html
http://marc.info/?l=bugtraq&m=143403519711434&w=2
http://marc.info/?l=bugtraq&m=143748090628601&w=2
http://marc.info/?l=bugtraq&m=144050155601375&w=2
http://php.net/ChangeLog-5.php
http://rhn.redhat.com/errata/RHSA-2015-1053.html
http://rhn.redhat.com/errata/RHSA-2015-1066.html
http://rhn.redhat.com/errata/RHSA-2015-1135.html
http://rhn.redhat.com/errata/RHSA-2015-1218.html
http://support.apple.com/kb/HT204942
http://www.debian.org/security/2015/dsa-3195
http://www.mandriva.com/security/advisories?name=MDVSA-2015:079
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.securityfocus.com/bid/72701
http://www.securitytracker.com/id/1031945
http://www.ubuntu.com/usn/USN-2535-1
https://bugs.php.net/bug.php?id=68942 Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=1194730
https://security.gentoo.org/glsa/201606-10
https://support.apple.com/HT205267
https://support.apple.com/HT205375
cvelogic Threat Intelligence