Microsoft · Security update · January 13, 2026

KB5002826: January 2026 security update

KB5002826, released January 13, 2026, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
3
2 rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0065
51st percentile

Priority of the 3 CVEs

Patch now 0 Urgent 2 High 1 Routine 0

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2026-20953 Microsoft Office Remote Code Execution 8.4 0.0057 Exploitation Less Likely
Urgent CVE-2026-20952 Microsoft Office Remote Code Execution 8.4 0.0053 Exploitation Less Likely
High CVE-2026-20943 Microsoft Office Remote Code Execution 7.0 0.0065 Exploitation Less Likely
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