Security News > 2023 > April > Microsoft April 2023 Patch Tuesday fixes 1 zero-day, 97 flaws
Today is Microsoft's April 2023 Patch Tuesday, and security updates fix one actively exploited zero-day vulnerability and a total of 97 flaws.
This count does not include seventeen Microsoft Edge vulnerabilities fixed on April 6th. One zero-day fixed.
This month's Patch Tuesday fixes one zero-day vulnerability actively exploited in attacks.
Microsoft classifies a vulnerability as a zero-day if it is publicly disclosed or actively exploited with no official fix available.
While not actively exploited, Microsoft Office, Word, and Publisher remote code execution vulnerabilities were fixed today that can be exploited simply by opening malicious documents.
Below is the complete list of resolved vulnerabilities in the April 2023 Patch Tuesday updates.
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