Researcher Vivek Krishnan states he has reviewed the first Windows 10 Build “Redstone 4” released to the Development Branch today, and sees many similar security holes as was found in the leak of Windows 10 Build 10526 last week.
Here are some interesting facts and revelations Krishnan has noted:
The drive by issue mentioned in the leaked Microsoft Document is actually a debug message that will be used in the release of Windows 10 Redstone 4 Update, likely to be released within a few months. Microsoft plans to test Redstone 4 with a small number of Windows Insider beta testers, and then release it to Windows 10 Technical Preview Build 10540 or higher.
Concerns were also raised over a Java memory leak issue in the leaked Build 10526, but Vivek reports that when he attempted to simulate that issue on his own laptop, he saw it as a false positive that was caused by a bug in his test script.
Vivek also notes that the leaked Build 10526 that was released to the public today, also contains issues like an issue where certain virtual desktops on a Windows 10 Desktop that are open to many tasks will not work with two monitor configuration. When the user goes back to the “Standard” window for that virtual desktop, the screen will fill up with icons for new open virtual desktops. This issue can be fixed by fixing the small changes to a small registry key, but this is not something that most users are likely to notice or care about.
Microsoft will likely release a notification advising users to change the resolution settings for virtual desktops.
Vivek also notes that the new build contains another software bug that leads to an infinite looping error when the VBScript’s generator runs an EIGRP (SOCKS5) server. After running the EIGRP server as the first task, the EIGRP service will run an infinite loop until the task completes. This issue will not affect many users, as the VM that generates the VBScript has a default resolution that is set to 800x600.
Other minor issues with the leaked build include the monitor errors in the leaked build. For the display settings, the images and apps from the Microsoft Store does not appear to be updated. However, the Xbox app seems to work as expected in this build, since it was developed for that platform.
However, Microsoft will likely release a notification advising users to change the resolution settings for virtual desktops.