Home/CVE/Microsoft Office Online Server Spoofing Vulnerability
CVE

CVE-2021-34451

Microsoft Office Online Server Spoofing Vulnerability

Microsoft Office Online Server Spoofing Vulnerability.

MEDIUM · CVSS 5.3 EPSS 0.01538
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

1
microsoft office online serverall versions
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Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · secure@microsoft.com
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Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD16 Jul 2021 · 09:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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Vendor Advisories

1
msrcCVE-2021-34451Spoofing
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34451PatchVendor Advisory
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