CVE-2021-26857 | Microsoft Exchange Server 2013 CU23/2016 CU18/2016 CU19/2019 CU7/2019 CU8 deserialization (EUVD-2021-13641)
A vulnerability, which was classified as critical, was found in Microsoft Exchange Server 2013 CU23/2016 CU18/2016 CU19/2019 CU7/2019 CU8. This issue affects some unknown processing. The manipulation results in deserialization.
This vulnerability is reported as CVE-2021-26857. The attack can be launched remotely. Moreover, an exploit is present.
Applying a patch is advised to resolve this issue.