High MSRC-CVE-2021-34451 1 CVE

Microsoft Office Online Server Spoofing Vulnerability

Published Jul 13, 2021 · Updated Jul 13, 2021

Vendor: Microsoft

Summary

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

Details

Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.

Security updates
16.0.10376.20001 — https://support.microsoft.com/kb/5001973

Vulnerabilities 1

Medium 5.3

CVE-2021-34451

Microsoft Office Online Server Spoofing Vulnerability

Microsoft Office Online Server Spoofing Vulnerability

Microsoft Microsoft Office Online Server

Jul 16, 2021

Revision history

2021-07-13 #1
Information published.

References

CVE-2021-34451 Microsoft Office Online Server Spoofing Vulnerability - HTML
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34451
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