Microsoft · Security update · January 14, 2025

KB5050063: January 2025 security update

KB5050063, released January 14, 2025, fixes 73 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product
CVEs closed
73
3 rated Critical
Exploited
0
None reported
Exploitation more likely
7
Microsoft's assessment
Highest EPSS
0.7437
99th percentile

Priority of the 73 CVEs

Patch now 0 Urgent 9 High 40 Routine 24

Applies to

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2025-21298 Windows OLERemote Code Execution9.8 0.7437 More likely
Urgent CVE-2025-21269 Windows MapUrlToZoneSecurity Feature Bypass4.3 0.0450 More likely
Urgent CVE-2025-21189 Windows MapUrlToZoneSecurity Feature Bypass4.3 0.0291 More likely
Urgent CVE-2025-21268 Windows MapUrlToZoneSecurity Feature Bypass4.3 0.0195 More likely
Urgent CVE-2025-21307 Reliable Multicast Transport Driver (RMCAST)Remote Code Execution9.8 0.0194 Exploitation Less Likely
Urgent CVE-2025-21328 Windows MapUrlToZoneSecurity Feature Bypass4.3 0.0149 More likely
Urgent CVE-2025-21329 Windows MapUrlToZoneSecurity Feature Bypass4.3 0.0149 More likely
Urgent CVE-2025-21294 Microsoft Digest AuthenticationRemote Code Execution8.1 0.0123 Exploitation Less Likely
Urgent CVE-2025-21210 Windows Virtual Trusted Platform ModuleInformation Disclosure4.2 0.0112 More likely
High CVE-2025-21285 Windows Message QueuingDenial of Service7.5 0.5616 Exploitation Less Likely
High CVE-2025-21277 Windows Message QueuingDenial of Service7.5 0.3906 Exploitation Less Likely
High CVE-2025-21230 Windows Message QueuingDenial of Service7.5 0.0272 Exploitation Less Likely
High CVE-2025-21231 IP HelperDenial of Service7.5 0.0263 Exploitation Less Likely
High CVE-2025-21251 Windows Message QueuingDenial of Service7.5 0.0263 Exploitation Less Likely
High CVE-2025-21300 Windows UPnP Device HostDenial of Service7.5 0.0257 Exploitation Less Likely
High CVE-2025-21276 Windows MapUrlToZoneDenial of Service7.5 0.0246 Exploitation Less Likely
High CVE-2025-21270 Windows Message QueuingDenial of Service7.5 0.0243 Exploitation Less Likely
High CVE-2025-21289 Windows Message QueuingDenial of Service7.5 0.0243 Exploitation Less Likely
High CVE-2025-21290 Windows Message QueuingDenial of Service7.5 0.0243 Exploitation Less Likely
High CVE-2025-21220 Windows Message QueuingInformation Disclosure7.5 0.0211 Exploitation Less Likely
High CVE-2025-21389 Windows UPnP Device HostDenial of Service7.5 0.0197 Exploitation Less Likely
High CVE-2025-21233 Windows Telephony ServiceRemote Code Execution8.8 0.0171 Exploitation Less Likely
High CVE-2025-21236 Windows Telephony ServiceRemote Code Execution8.8 0.0171 Exploitation Less Likely
High CVE-2025-21237 Windows Telephony ServiceRemote Code Execution8.8 0.0171 Exploitation Less Likely
High CVE-2025-21238 Windows Telephony ServiceRemote Code Execution8.8 0.0171 Exploitation Less Likely
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