Forum Discussion
Update KB5073723 breaks OpenSSH logins for users
Hallo,
i found out that since i installed the KB5073723 Update on my Windows Server 2019 the integrated OpenSSH (which i use for SFTP) was no longer successully authorized Users when they try to login with WinSCP for example which worked for years.
I have seen in the log that there was written "sshd: fatal: ga_init, unable to resolve user domain\\sftpuser"
it seems that the "\\" is one backslash to much!
After uninstalling KB5073723 and rebooting everything works as expected again!
Pls. take a look and fix this bug.
Thx
Wolfgang
2 Replies
indicates that the SSH daemon is having trouble parsing or resolving the username due to an extra backslash or a format change introduced by the update.
After installing the February 2026 Updates the problem still persists. I once again had to roll back the update to get it working.
