The latest mega-patch, available for Windows, Mac and UNIX users, covers a whopping 23 security flaws that could cause software crashes or remote code execution attacks.
Affected Software Versions:
- Adobe Reader 9.3.4 and earlier versions for Windows, Macintosh and UNIX
- Adobe Acrobat 9.3.4 and earlier versions for Windows and Macintosh
The company rates these vulnerabilities as "critical" and urged users to immediately upgrade to Adobe Reader 9.4.
This patch batch was rushed out in response to zero-day attacks that exploited at least two of the 23 security holes.
The next quarterly security updates for Adobe Reader and Acrobat are scheduled for February 8, 2011.