Zero-day vulnerability in Adobe Flash Player

Memory corruption

The vulnerability has being used during 1 month before disclosure. The campaign started with spam emails enticing users to open its attachment, typically a Microsoft Word document (or a zip file of a Microsoft Word document), which contained inside the malicious Flash exploit.

Known malware:

Microsoft - Exploit:SWF/CVE-2011-0611.C, NOD32 - JS/Exploit.Pdfka.OXL.Gen, Symantec - Trojan.Pidief, Ikarus - Exploit.JS.ShellCode.

Vulnerability details

Advisory: SB2011041101 - Remote code execution in Adobe Flash Player

Vulnerable component: Adobe Flash Player

CVE-ID: CVE-2011-0611

CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to boundary error in authplay.dll component. A remote attacker can create a specially Flash (.swf) file embedded in a Microsoft Word (.doc) file, trick the victim into opening it, trigger memory corruption, and execute arbitrary code on the system with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Public Exploits: