Adobe has released security updates for Adobe Flash Player for Windows, Macintosh, Linux and Chrome OS. These updates address critical vulnerabilities that could lead to remote code execution in Adobe Flash Player 28.0.0.137 and earlier versions. Successful exploitation could potentially allow an attacker to take control of the affected system.
Adobe is aware of a report that an exploit for CVE-2018-4878 exists in the wild, and is being used in limited, targeted attacks against Windows users. These attacks leverage Office documents with embedded malicious Flash content distributed via email.
| Product | Version | Platform |
| Adobe Flash Player Desktop Runtime | 28.0.0.137 and earlier versions | Windows, Macintosh |
| Adobe Flash Player for Google Chrome | 28.0.0.137 and earlier versions | Windows, Macintosh, Linux and Chrome OS |
| Adobe Flash Player for Microsoft Edge and Internet Explorer 11 | 28.0.0.137 and earlier versions | Windows 10 and 8.1 |
| Adobe Flash Player Desktop Runtime | 28.0.0.137 and earlier versions | Linux |
To verify the version of Adobe Flash Player installed on your system, access the About Flash Player page, or right- click on content running in Flash Player and select "About Adobe (or Macromedia) Flash Player" from the menu. If you use multiple browsers, perform the check for each browser you have installed on your system.
Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the latest version:
| Product | Version | Platform | Priority | Availability |
| Adobe Flash Player Desktop Runtime | 28.0.0.161 | Windows, Macintosh | 1 | |
| Adobe Flash Player for Google Chrome | 28.0.0.161 |
Windows, Macintosh, Linux and Chrome OS | 1 | Google Chrome Releases |
| Adobe Flash Player for Microsoft Edge and Internet Explorer 11 | 28.0.0.161 |
Windows 10 and 8.1 | 1 | Microsoft Security Advisory |
| Adobe Flash Player Desktop Runtime | 28.0.0.161 |
Linux | 3 | Flash Player Download Center |
Note:
- Adobe recommends users of the Adobe Flash Player Desktop Runtime for Windows, Macintosh and Linux update to Adobe Flash Player 28.0.0.161 via the update mechanism within the product [1] or by visiting the Adobe Flash Player Download Center.
- Adobe Flash Player installed with Google Chrome will be automatically updated to the latest Google Chrome version, which will include Adobe Flash Player 28.0.0.161 for Windows, Macintosh, Linux and Chrome OS.
- Adobe Flash Player installed with Microsoft Edge and Internet Explorer 11 for Windows 10 and 8.1 will be automatically updated to the latest version, which will include Adobe Flash Player 28.0.0.161.
- Please visit the Flash Player Help page for assistance in installing Flash Player.
[1] Users who have selected the option to 'Allow Adobe to install updates' will receive the update automatically. Users who do not have the 'Allow Adobe to install updates' option enabled can install the update via the update mechanism within the product when prompted.
