Deserialization of Untrusted Data in Microsoft Exchange Server - CVE-2026-62912
Published: August 11, 2026
Vulnerability identifier: #VU141474
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-62912
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to deserialization of untrusted data in Microsoft Exchange Server when handling network requests. A remote user can send crafted serialized data to cause a denial of service.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2026-62912
Install security update from vendor's website.
Microsoft Exchange Server - addressed in versions 15.01.2507.072, 15.02.1544.044, 15.02.1748.049, 15.02.2562.046