Microsoft · Security update · January 14, 2025

KB5050048: January 2025 security update

KB5050048, released January 14, 2025, fixes 96 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent1 publicly disclosed

CVEs closed

8 rated Critical

Exploited

None reported

Exploitation more likely

Microsoft's assessment

Highest EPSS

0.7437

99th percentile

Priority of the 96 CVEs

Patch now 0
                                Urgent 14
                                High 44
                                Routine 38

Applies to

Product
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

CVEs this fix closes

Priority	CVE	Component	Impact	CVSS	EPSS	Exploitation
Urgent	CVE-2025-21298	Windows OLE	Remote Code Execution	9.8	0.7437	More likely
Urgent	CVE-2025-21309	Windows Remote Desktop Services	Remote Code Execution	8.1	0.1506	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-2024-49120	Windows Remote Desktop Services	Remote Code Execution	8.1	0.0110	Exploitation Less 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-2025-21293	Active Directory Domain Services	Elevation of Privilege	8.8	0.1499	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-2025-21218	Windows Kerberos	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

Released the same day

KB5002595
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5002656
Microsoft Outlook 2016 (32-bit edition), Microsoft Outlook 2016 (64-bit edition)
KB5002666
Microsoft SharePoint Server 2019
KB5002667
Microsoft SharePoint Server 2019
KB5002670
Microsoft Access 2016 (32-bit edition), Microsoft Access 2016 (64-bit edition)
KB5002671
Microsoft SharePoint Enterprise Server 2016
KB5002672
Microsoft SharePoint Enterprise Server 2016
KB5002673
Microsoft Excel 2016 (32-bit edition), Microsoft Excel 2016 (64-bit edition)
KB5002675
Microsoft Office 2016 (32-bit edition), Microsoft Office 2016 (64-bit edition)
KB5002676
Microsoft SharePoint Server Subscription Edition
KB5002677
Office Online Server
KB5002688
Microsoft Access 2016 (32-bit edition), Microsoft Access 2016 (64-bit edition)

Vendor advisory

https://support.microsoft.com/help/5050048

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