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CVE-2011-0611: Adobe Flash Player Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-03
• EPSS: 99.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-04-13 · updated 2026-06-16
• Weakness: CWE-843

Description

Adobe Flash Player before 10.2.154.27 on Windows, Mac OS X, Linux, and Solaris and 10.2.156.12 and earlier on Android; Adobe AIR before 2.6.19140; and Authplay.dll (aka AuthPlayLib.bundle) in Adobe Reader 9.x before 9.4.4 and 10.x through 10.0.1 on Windows, Adobe Reader 9.x before 9.4.4 and 10.x before 10.0.3 on Mac OS X, and Adobe Acrobat 9.x before 9.4.4 and 10.x before 10.0.3 on Windows and Mac OS X allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via crafted Flash content; as demonstrated by a Microsoft Office document with an embedded .swf file that has a size inconsistency in a "group of included constants," object type confusion, ActionScript that adds custom functions to prototypes, and Date objects; and as exploited in the wild in April 2011.

Affected products

• Adobe Acrobat for Edge: from 9.0 before 9.4; from 10.0 before 10.0.3 — fixed in 10.0.3, 9.4
• Adobe Acrobat Reader: from 9.0 before 9.4.4; from 10.0 through 10.0.1; from 10.0 before 10.0.3 — fixed in 10.0.3, 9.4.4
• Adobe Air: before 2.6.19140 — fixed in 2.6.19140
• Adobe Flash Player 24.0.0.186 and earlier.: before 10.2.154.27; through 10.2.156.12 — fixed in 10.2.154.27
• Google Chrome: before 10.0.648.205 — fixed in 10.0.648.205
• Opensuse: 11.2, 11.3, 11.4
• SUSE Linux Enterprise Server 15 SP1: 10-sp4, 11-sp1

How to fix

Upgrade to a fixed version: Adobe Acrobat for Edge 10.0.3, 9.4; Adobe Acrobat Reader 10.0.3, 9.4.4; Adobe Air 2.6.19140; Adobe Flash Player 24.0.0.186 and earlier. 10.2.154.27; Google Chrome 10.0.648.205. Check the vendor advisory for mitigations.

References

• http://blogs.technet.com/b/mmpc/archive/2011/04/12/analysis-of-the-cve-2011-0611-adobe-flash-player-vulnerability-exploitation.aspx
• http://bugix-security.blogspot.com/2011/04/cve-2011-0611-adobe-flash-zero-day.html
• http://contagiodump.blogspot.com/2011/04/apr-8-cve-2011-0611-flash-player-zero.html
• http://googlechromereleases.blogspot.com/2011/04/stable-channel-update.html
• http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00004.html
• http://secunia.com/advisories/44119
• http://secunia.com/advisories/44141
• http://secunia.com/advisories/44149
• http://secunia.com/blog/210/
• http://securityreason.com/securityalert/8204
• http://securityreason.com/securityalert/8292
• http://www.adobe.com/support/security/advisories/apsa11-02.html

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