9.3 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:C/I:C/A:C
0.013 Low
EPSS
Percentile
85.9%
This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Adobe Flash Player. User interaction is required in that a target must visit a malicious web page. The specific vulnerability exists within the parsing of an undocumented opcode within Adobeβs ActionScript Virtual Machine 2 bytecode. The operand to this opcode is used as an offset to a structure and if set to a malicious value can be pointed to attacker controlled data. The structure contains a function pointer that is later called. If an attacker modifies the controlled data pointed to by the invalid offset, this function pointer can be set to point to malicious code thus gaining execution under the context of the user running the browser.