Microsoft · Security update · February 11, 2025
KB5052040: February 2025 cumulative update for Windows 10 1507
KB5052040, released February 11, 2025, fixes 27 CVEs across 2 products. 2 of them are being exploited (CVE-2025-21391); 2 on CISA KEV. Patch Radar priority: Patch now. The product is no longer supported.
Patch now2 on CISA KEV1 publicly disclosedUnsupported product
CVEs closed
27
1 rated Critical
Exploited
2
CVE-2025-21391
Exploitation more likely
7
Microsoft's assessment
Highest EPSS
0.3993
98th percentile
Priority of the 27 CVEs
Patch now 2
Urgent 7
High 13
Routine 5
Applies to
| Product | Build after install |
|---|---|
| Windows 10 for 32-bit Systems | 10240.20915 |
| Windows 10 for x64-based Systems | 10240.20915 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Patch now | CVE-2025-21391 | Windows Storage | Elevation of Privilege | 7.1 | 0.0228 | KEVExploited |
| Patch now | CVE-2025-21418 | Windows Ancillary Function Driver for WinSock | Elevation of Privilege | 7.8 | 0.0213 | KEVExploited |
| Urgent | CVE-2025-21377 | Windows NTLM | Spoofing | 6.5 | 0.3993 | DisclosedMore likely |
| Urgent | CVE-2025-21376 | Windows LDAP - Lightweight Directory Access Protocol | Remote Code Execution | 8.1 | 0.0931 | More likely |
| Urgent | CVE-2025-21420 | Windows Disk Cleanup Tool | Elevation of Privilege | 7.8 | 0.0367 | More likely |
| Urgent | CVE-2025-21358 | Windows CoreMessaging | Elevation of Privilege | 7.8 | 0.0076 | More likely |
| Urgent | CVE-2025-21419 | Windows Setup Files Cleanup | Elevation of Privilege | 7.1 | 0.0072 | More likely |
| Urgent | CVE-2025-21414 | Windows DWM Core Library | Elevation of Privilege | 7.0 | 0.0061 | More likely |
| Urgent | CVE-2025-21184 | Windows CoreMessaging | Elevation of Privilege | 7.0 | 0.0061 | More likely |
| High | CVE-2025-21181 | Windows Message Queuing | Denial of Service | 7.5 | 0.0348 | Exploitation Less Likely |
| High | CVE-2025-21371 | Windows Telephony Service | Remote Code Execution | 8.8 | 0.0243 | Exploitation Less Likely |
| High | CVE-2025-21368 | Microsoft Digest Authentication | Remote Code Execution | 8.8 | 0.0215 | Exploitation Less Likely |
| High | CVE-2025-21369 | Microsoft Digest Authentication | Remote Code Execution | 8.8 | 0.0215 | Exploitation Less Likely |
| High | CVE-2025-21406 | Windows Telephony Service | Remote Code Execution | 8.8 | 0.0182 | Exploitation Less Likely |
| High | CVE-2025-21407 | Windows Telephony Service | Remote Code Execution | 8.8 | 0.0182 | Exploitation Less Likely |
| High | CVE-2025-21190 | Windows Telephony Service | Remote Code Execution | 8.8 | 0.0181 | Exploitation Less Likely |
| High | CVE-2025-21200 | Windows Telephony Service | Remote Code Execution | 8.8 | 0.0181 | Exploitation Less Likely |
| High | CVE-2025-21201 | Windows Telephony Server | Remote Code Execution | 8.8 | 0.0181 | Exploitation Less Likely |
| High | CVE-2025-21373 | Windows Installer | Elevation of Privilege | 7.8 | 0.0080 | Exploitation Less Likely |
| High | CVE-2025-26634 | Windows Core Messaging | Elevation of Privilege | 7.5 | 0.0067 | Exploitation Less Likely |
| High | CVE-2025-21375 | Microsoft Streaming Service | Elevation of Privilege | 7.8 | 0.0065 | Exploitation Less Likely |
| High | CVE-2025-21359 | Windows Kernel | Security Feature Bypass | 7.8 | 0.0056 | Exploitation Less Likely |
| Routine | CVE-2025-21350 | Windows Kerberos | Denial of Service | 5.9 | 0.0213 | Exploitation Less Likely |
| Routine | CVE-2025-21349 | Windows Remote Desktop Services | Tampering | 6.8 | 0.0114 | Exploitation Less Likely |
| Routine | CVE-2025-21352 | Windows Internet Connection Sharing (ICS) | Denial of Service | 6.5 | 0.0104 | Exploitation Less Likely |
Showing 1 to 25 of 27
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