High 7.5Published Mar 30, 2015

CVE-2015-2787Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 allows remote attackers to execu…

Updated under an hour ago (Nov 2, 2026, 1:40 AM ET)

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It affects php and 8 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Use-after-free vulnerability in the process_nested_data function in ext/standard/var_unserializer.re in PHP before 5.4.39, 5.5.x before 5.5.23, and 5.6.x before 5.6.7 allows remote attackers to execute arbitrary code via a crafted unserialize call that leverages use of the unset function within an __wakeup function, a related issue to CVE-2015-0231.

CVSS: 7.5 HIGH (v2.0, NVD)AV:N/AC:L/Au:N/C:P/I:P/A:P
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

php php php:php	through 5.4.38; 5.5.0; 5.5.0; 5.5.0; 5.5.0; 5.5.0; 5.5.0; 5.5.0; and 43 more ranges	NVD
apple mac_os_x apple:mac_os_x	through 10.6.8; 10.9.5; 10.10.0; 10.10.1; 10.10.2; 10.10.3; 10.10.4	NVD
redhat enterprise_linux_desktop redhat:enterprise_linux_desktop	7.0	NVD
redhat enterprise_linux_hpc_node redhat:enterprise_linux_hpc_node	7.0	NVD
redhat enterprise_linux_hpc_node_eus redhat:enterprise_linux_hpc_node_eus	7.1	NVD
redhat enterprise_linux_server redhat:enterprise_linux_server	7.0	NVD
redhat enterprise_linux_server_eus redhat:enterprise_linux_server_eus	7.1	NVD
redhat enterprise_linux_workstation redhat:enterprise_linux_workstation	7.0	NVD
opensuse opensuse opensuse:opensuse	13.1; 13.2	NVD

References

References

http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html	vendor-advisory
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html	vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00015.html
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
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The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.