Improper handling of additional special element in Microsoft Exchange Server - CVE-2025-25006
Published: August 12, 2025
Vulnerability identifier: #VU113849
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-25006
CWE-ID: CWE-167
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to improper input validation. A remote attacker can spoof incorrect 5322.From email address that is displayed to a user.
Affected software
Microsoft Exchange Server
How to mitigate CVE-2025-25006
Install updates from vendor's website.
Microsoft Exchange Server - addressed in versions SE RTM Aug25SU 15.02.2562.020, 2016 CU23 Aug25SU 15.01.2507.058, 2019 CU14 15.02.1544.033, 2019 CU15 15.02.1748.036