Vulnerability · Published Jul 16, 2021 · Assigned by microsoft
CVE-2021-34451Microsoft Office Online Server Spoofing Vulnerability
Medium 5.3
In plain English
A medium-severity security flaw in Microsoft Office Online Server from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)1.8%top 21.6% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Microsoft Office Online Server Spoofing Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Office Online Server | 16.0.1 – before 16.0.10376.20001 |
References
- Microsoft Office Online Server Spoofing Vulnerability vendor-advisory, patch
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34451 x_refsource_MISC, x_transferred