Microsoft today released the Enhanced Mitigation Experience Toolkit (EMET) 5.1. This new release of EMET will continue to improve security posture by providing increased application compatibility and hardened mitigations.
Following is the list of the main changes and improvements:
- Several application compatibility issues with Internet Explorer, Adobe Reader, Adobe Flash, and Mozilla Firefox and some of the EMET mitigations have been solved.
- Certain mitigations have been improved and hardened to make them more resilient to attacks and bypasses.
- Added “Local Telemetry” feature that allows to locally save memory dumps when a mitigation is triggered.
Microsoft provided following compatibility issues guide regarding EMET 5.1,
If you are using Internet Explorer 11, either on Windows 7 or Windows 8.1, and have deployed EMET 5.0, it is particularly important to install EMET 5.1 as compatibility issues were discovered with the November Internet Explorer security update and the EAF+ mitigation. Alternatively, you can temporarily disable EAF+ on EMET 5.0. Details on how to disable the EAF+ mitigation are available in the User Guide. In general we recommend upgrading to the latest version of EMET to benefit from all the enhancements.