What’s Vulnerable › Vulnerabilities

CVE-2022-33648: Microsoft Excel Remote Code Execution Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-09 · updated 2026-06-17

Description

Microsoft Excel Remote Code Execution Vulnerability

Affected products

• Microsoft Office Online Server: all versions
• Microsoft Office Online Server: from 16.0.1 before 16.0.10389.20000 — fixed in 16.0.10389.20000

How to fix

Upgrade to a fixed version: Microsoft Office Online Server 16.0.10389.20000. Check the vendor advisory for mitigations.

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33648
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-33648

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