7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.937 High
EPSS
Percentile
99.1%
Integer overflow in the object_custom function in
ext/standard/var_unserializer.c in PHP before 5.4.34, 5.5.x before 5.5.18,
and 5.6.x before 5.6.2 allows remote attackers to cause a denial of service
(application crash) or possibly execute arbitrary code via an argument to
the unserialize function that triggers calculation of a large length value.