Adobe is facing criticism over a vulnerability that could allow attackers to remotely install malicious software on a target computer.
The bug has been known for some time and is one of the more widespread vulnerabilities found in Adobe Reader, according to Adobe.
In fact, the vulnerability is found in a version of the Reader software that is used by about a third of all computers on the internet.
The Adobe Reader flaw allows attackers to install malware on computers and open email attachments.
A researcher at cybersecurity firm Trend Micro recently told The Verge that the vulnerability existed in versions of the software used by more than 40 percent of all PCs.
The flaw was first discovered by security firm FireEye in October, and the vulnerability was disclosed to Adobe in early December.
The vulnerability was patched on March 2.
Adobe says it has made “a number of changes” to fix the vulnerability.
The exploit requires the use of the Adobe Reader application, which can be downloaded from the Adobe Web site.
The exploit allows attackers the ability to install a remote code execution vulnerability in the Adobe PDF viewer application, Adobe Reader for Mac, Adobe Flash Player for Windows, and Adobe Reader Lite.
The vulnerability is described in a report by Trend Micro titled “A remote code Execution vulnerability in a Adobe Reader client application” published on February 13.
The report said the flaw was discovered in Adobe Flash Reader for Windows and Adobe Flash reader for Mac.
Affected systems include Macs, Windows machines, and Chromebooks running Adobe Reader.
Users can try to install Adobe Reader on affected systems by visiting Adobe’s support site.
The company says users should immediately stop using the Adobe reader application and review all settings to ensure that their computers are not infected.
Adobe is also making changes to its security and privacy policies to better protect its users.
“The software is being actively updated to address the flaw.
Please continue to use the Adobe browser and Adobe products until the update is released.
If you have not already, we strongly recommend that you do so.
The updated software has been installed on approximately 40% of all affected computers and is available to all users of the affected products,” Adobe wrote in a statement.