10 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.58 Medium
EPSS
Percentile
97.7%
Integer overflow in PHP 5 up to 5.1.6 and 4 before 4.3.0 allows remote
attackers to execute arbitrary code via an argument to the unserialize PHP
function with a large value for the number of array elements, which
triggers the overflow in the Zend Engine ecalloc function
(Zend/zend_alloc.c).