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KB5002887

Security update fixing 23 CVEs

Support article Update Catalog CVEs in Security CVE list for a ticket
0Windows versions
23CVEs fixed · 7 critical
0Exploited or in CISA KEV
0Open known issues affecting it
—Restart required (per MSRC)

Known issues in this update

Windows release health

No known issues listed

Windows release health lists no issues from this KB or the update it builds on.

Issues this update resolves

No resolved issues listed

Windows release health names no issues fixed by this KB.

Security fixes

23 Microsoft CVEs · most urgent first
CVE Vulnerability Severity CVSSEPSSImpact Status
CVE-2026-55045 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 8.40.4%Remote Code Execution
CVE-2026-50314 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
CVE-2026-50467 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
CVE-2026-55018 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
CVE-2026-55022 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
CVE-2026-55056 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution
CVE-2026-55129 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Critical 7.80.5%Remote Code Execution Revised 30 Jul
CVE-2026-50301 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.5%Remote Code Execution
CVE-2026-50665 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 7.80.5%Information Disclosure
CVE-2026-55125 Microsoft Office Remote Code Execution VulnerabilityMicrosoft Office Important 7.80.6%Remote Code Execution
CVE-2026-56193 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 7.10.5%Information Disclosure
CVE-2026-55026 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 6.20.4%Information Disclosure
CVE-2026-55023 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-55027 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-55028 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-55035 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-55042 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
CVE-2026-55047 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-55057 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
CVE-2026-55121 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure Revised 17 Sep
CVE-2026-55139 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
CVE-2026-56192 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.6%Information Disclosure
CVE-2026-56195 Microsoft Office Information Disclosure VulnerabilityMicrosoft Office Important 5.50.5%Information Disclosure
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