// For flags

CVE-2016-7417

php: Missing type check when unserializing SplArray

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

ext/spl/spl_array.c in PHP before 5.6.26 and 7.x before 7.0.11 proceeds with SplArray unserialization without validating a return value and data type, which allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted serialized data.

ext/spl/spl_array.c en PHP en versiones anteriores a 5.6.26 y 7.x en versiones anteriores a 7.0.11 procede con SplArray no serializado sin validar un valor de retorno y tipo de dato, lo que permite a atacantes remotos provocar una denegación de servicio o tener otro posible impacto no especificado a través de datos serializados manipulados.

Taoguang Chen discovered that PHP incorrectly handled certain invalid objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. Taoguang Chen discovered that PHP incorrectly handled invalid session names. A remote attacker could use this issue to inject arbitrary session data. Various other issues were also addressed.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2016-09-09 CVE Reserved
  • 2016-09-17 CVE Published
  • 2024-08-06 CVE Updated
  • 2024-08-06 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-20: Improper Input Validation
  • CWE-252: Unchecked Return Value
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Php
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Php
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<= 5.6.25
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-
Affected
Php
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Php
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7.0.0
Search vendor "Php" for product "Php" and version "7.0.0"
-
Affected
Php
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Php
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7.0.1
Search vendor "Php" for product "Php" and version "7.0.1"
-
Affected
Php
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Php
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7.0.2
Search vendor "Php" for product "Php" and version "7.0.2"
-
Affected
Php
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Php
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7.0.3
Search vendor "Php" for product "Php" and version "7.0.3"
-
Affected
Php
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Php
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7.0.4
Search vendor "Php" for product "Php" and version "7.0.4"
-
Affected
Php
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Php
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7.0.5
Search vendor "Php" for product "Php" and version "7.0.5"
-
Affected
Php
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Php
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7.0.6
Search vendor "Php" for product "Php" and version "7.0.6"
-
Affected
Php
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Php
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7.0.7
Search vendor "Php" for product "Php" and version "7.0.7"
-
Affected
Php
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Php
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7.0.8
Search vendor "Php" for product "Php" and version "7.0.8"
-
Affected
Php
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Php
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7.0.9
Search vendor "Php" for product "Php" and version "7.0.9"
-
Affected
Php
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Php
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7.0.10
Search vendor "Php" for product "Php" and version "7.0.10"
-
Affected