Vulnerability Monitor

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CVE-2015-2787


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.


Security Impact Summary

CVE-2015-2787 is a security vulnerability that . Impacting 9 products from php, from apple, from redhat and 6 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2015, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.


Published

2015-03-30T10:59:15.663

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    NVD-CWE-Other

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php ≤ 5.4.38 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.1 Yes
Application php php 5.5.2 Yes
Application php php 5.5.3 Yes
Application php php 5.5.4 Yes
Application php php 5.5.5 Yes
Application php php 5.5.6 Yes
Application php php 5.5.7 Yes
Application php php 5.5.8 Yes
Application php php 5.5.9 Yes
Application php php 5.5.10 Yes
Application php php 5.5.11 Yes
Application php php 5.5.12 Yes
Application php php 5.5.13 Yes
Application php php 5.5.14 Yes
Application php php 5.5.15 Yes
Application php php 5.5.16 Yes
Application php php 5.5.17 Yes
Application php php 5.5.18 Yes
Application php php 5.5.19 Yes
Application php php 5.5.20 Yes
Application php php 5.5.21 Yes
Application php php 5.5.22 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.0 Yes
Application php php 5.6.1 Yes
Application php php 5.6.2 Yes
Application php php 5.6.3 Yes
Application php php 5.6.4 Yes
Application php php 5.6.5 Yes
Application php php 5.6.6 Yes
Operating System apple mac_os_x ≤ 10.6.8 Yes
Operating System apple mac_os_x 10.9.5 Yes
Operating System apple mac_os_x 10.10.0 Yes
Operating System apple mac_os_x 10.10.1 Yes
Operating System apple mac_os_x 10.10.2 Yes
Operating System apple mac_os_x 10.10.3 Yes
Operating System apple mac_os_x 10.10.4 Yes
Operating System redhat enterprise_linux_desktop 7.0 Yes
Operating System redhat enterprise_linux_hpc_node 7.0 Yes
Operating System redhat enterprise_linux_hpc_node_eus 7.1 Yes
Operating System redhat enterprise_linux_server 7.0 Yes
Operating System redhat enterprise_linux_server_eus 7.1 Yes
Operating System redhat enterprise_linux_workstation 7.0 Yes
Operating System opensuse opensuse 13.1 Yes
Operating System opensuse opensuse 13.2 Yes

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For php's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.