Microsoft · Security update · April 13, 2021
KB4504714: April 2021 security update
KB4504714, released April 13, 2021, fixes 4 CVEs in Microsoft Office Online Server. None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
4
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Microsoft's assessment
Highest EPSS
0.0405
90th percentile
Priority of the 4 CVEs
Patch now 0
Urgent 0
High 3
Routine 1
Applies to
| Product |
|---|
| Microsoft Office Online Server |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2021-28453 | Microsoft Office Word | Remote Code Execution | 7.8 | 0.0405 | Exploitation Less Likely |
| High | CVE-2021-28454 | Microsoft Office Excel | Remote Code Execution | 7.8 | 0.0335 | Exploitation Less Likely |
| High | CVE-2021-28451 | Microsoft Office Excel | Remote Code Execution | 7.8 | 0.0250 | Exploitation Less Likely |
| Routine | CVE-2021-28456 | Microsoft Office Excel | Information Disclosure | 5.5 | 0.0367 | Exploitation Less Likely |
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