Security News > 2022 > January > Microsoft Issues Fix for Exchange Y2K22 Bug That Crippled Email Delivery Service

Microsoft, over the weekend, rolled out a fix to address an issue that caused email messages to get stuck on its Exchange Server platforms due to what it blamed on a date validation error at around the turn of the year.

The Windows maker said the issue impacted on-premises versions of Exchange Server 2016 and Exchange Server 2019 but didn't specify how widespread the impact was.

The issue began to gain attention as the year 2022 kicked in, causing the servers to no longer deliver email messages while throwing the following error message: "The FIP-FS 'Microsoft' Scan Engine failed to load. PID: 23092, Error Code: 0x80004005. Error Description: Can't convert '2201010001' to long."

Microsoft noted that the issue was caused due to a date issue in a signature file used by the malware scanning engine within Exchange Server.

To mitigate the Y2K22 problem, Microsoft is recommending customers to download a PowerShell-based scan engine reset script called "Reset-ScanEngineVersion.ps1" that can then be executed on each Exchange mailbox server used for downloading antimalware updates.

"The newly updated scanning engine is fully supported by Microsoft," the company outlined.

News URL

https://thehackernews.com/2022/01/microsoft-issues-fix-for-exchange-y2k22.html