High MSRC-CVE-2025-25005 1 CVE

Microsoft Exchange Server Tampering Vulnerability

Published Aug 12, 2025 · Updated Aug 12, 2025

Vendor: Microsoft

Summary

Impact: Tampering. Microsoft rating: Important. Not known to be exploited — Exploitation Less Likely. Customer action: Required.

Details

Security updates
15.02.1544.033 — https://support.microsoft.com/help/5063222
15.01.2507.058 — https://support.microsoft.com/help/5063223
15.02.1748.036 — https://support.microsoft.com/help/5063221
15.02.2562.020 — https://support.microsoft.com/help/5063224

Vulnerabilities 1

Medium 6.5

CVE-2025-25005

Microsoft Exchange Server Tampering Vulnerability

Improper input validation in Microsoft Exchange Server allows an authorized attacker to perform tampering over a network.

Microsoft Microsoft Exchange Server 2016 Cumulative Update 23 Microsoft Exchange Server Subscription Edition RTM Microsoft Exchange Server 2019 Cumulative Update 14

Aug 12, 2025

Revision history

2025-08-12 #1
Information published.

References

CVE-2025-25005 Microsoft Exchange Server Tampering Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-25005
Microsoft Exploitability Index
https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1
Microsoft Support Lifecycle
https://support.microsoft.com/lifecycle
Common Vulnerability Scoring System
https://www.first.org/cvss