Microsoft · Security update · January 14, 2025

KB5050049: January 2025 security update

KB5050049, released January 14, 2025, fixes 78 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent. The product is no longer supported.

UrgentUnsupported product
CVEs closed
78
6 rated Critical
Exploited
0
None reported
Exploitation more likely
7
Vendor assessment
Highest EPSS
0.7437
99th percentile

Priority of the 78 CVEs

Patch now 0 Urgent 12 High 40 Routine 26

Applies to

Product
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)

CVEs this fix closes

PriorityCVEComponentImpactCVSSEPSSExploitation
Urgent CVE-2025-21298 Windows OLE Remote Code Execution 9.8 0.7437 More likely
Urgent CVE-2025-21269 Windows MapUrlToZone Security Feature Bypass 4.3 0.0450 More likely
Urgent CVE-2025-21189 Windows MapUrlToZone Security Feature Bypass 4.3 0.0291 More likely
Urgent CVE-2025-21268 Windows MapUrlToZone Security Feature Bypass 4.3 0.0195 More likely
Urgent CVE-2025-21307 Reliable Multicast Transport Driver (RMCAST) Remote Code Execution 9.8 0.0194 Exploitation Less Likely
Urgent CVE-2025-21295 Windows SPNEGO Extended Negotiation Remote Code Execution 8.1 0.0163 Exploitation Less Likely
Urgent CVE-2025-21328 Windows MapUrlToZone Security Feature Bypass 4.3 0.0149 More likely
Urgent CVE-2025-21329 Windows MapUrlToZone Security Feature Bypass 4.3 0.0149 More likely
Urgent CVE-2025-21297 Windows Remote Desktop Services Remote Code Execution 8.1 0.0146 Exploitation Less Likely
Urgent CVE-2025-21294 Microsoft Digest Authentication Remote Code Execution 8.1 0.0123 Exploitation Less Likely
Urgent CVE-2025-21210 Windows Virtual Trusted Platform Module Information Disclosure 4.2 0.0112 More likely
Urgent CVE-2025-21296 BranchCache Remote Code Execution 7.5 0.0079 Exploitation Less Likely
High CVE-2025-21285 Windows Message Queuing Denial of Service 7.5 0.5616 Exploitation Less Likely
High CVE-2025-21277 Windows Message Queuing Denial of Service 7.5 0.3906 Exploitation Less Likely
High CVE-2025-21230 Windows Message Queuing Denial of Service 7.5 0.0272 Exploitation Less Likely
High CVE-2025-21231 IP Helper Denial of Service 7.5 0.0263 Exploitation Less Likely
High CVE-2025-21251 Windows Message Queuing Denial of Service 7.5 0.0263 Exploitation Less Likely
High CVE-2025-21300 Windows UPnP Device Host Denial of Service 7.5 0.0257 Exploitation Less Likely
High CVE-2025-21276 Windows MapUrlToZone Denial of Service 7.5 0.0246 Exploitation Less Likely
High CVE-2025-21270 Windows Message Queuing Denial of Service 7.5 0.0243 Exploitation Less Likely
High CVE-2025-21289 Windows Message Queuing Denial of Service 7.5 0.0243 Exploitation Less Likely
High CVE-2025-21290 Windows Message Queuing Denial of Service 7.5 0.0243 Exploitation Less Likely
High CVE-2025-21220 Windows Message Queuing Information Disclosure 7.5 0.0211 Exploitation Less Likely
High CVE-2025-21389 Windows UPnP Device Host Denial of Service 7.5 0.0197 Exploitation Less Likely
High CVE-2025-21233 Windows Telephony Service Remote Code Execution 8.8 0.0171 Exploitation Less Likely
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