Microsoft · Security update · January 10, 2023
KB5022339: January 2023 security update
KB5022339, released January 10, 2023, fixes 40 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
40
8 rated Critical
Exploited
0
None reported
Exploitation more likely
4
Microsoft's assessment
Highest EPSS
0.0555
92nd percentile
Priority of the 40 CVEs
Patch now 0
Urgent 12
High 23
Routine 5
Applies to
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| Urgent | CVE-2023-21552 | Microsoft Graphics Component | Elevation of Privilege | 7.8 | 0.0354 | More likely |
| Urgent | CVE-2023-21543 | Windows Layer 2 Tunneling Protocol | Remote Code Execution | 8.1 | 0.0167 | Exploitation Less Likely |
| Urgent | CVE-2023-21556 | Windows Layer 2 Tunneling Protocol | Remote Code Execution | 8.1 | 0.0142 | Exploitation Less Likely |
| Urgent | CVE-2023-21546 | Windows Layer 2 Tunneling Protocol | Remote Code Execution | 8.1 | 0.0107 | Exploitation Less Likely |
| Urgent | CVE-2023-21555 | Windows Layer 2 Tunneling Protocol | Remote Code Execution | 8.1 | 0.0107 | Exploitation Less Likely |
| Urgent | CVE-2023-21679 | Windows Layer 2 Tunneling Protocol | Remote Code Execution | 8.1 | 0.0107 | Exploitation Less Likely |
| Urgent | CVE-2023-21548 | Windows Secure Socket Tunneling Protocol (SSTP) | Remote Code Execution | 8.1 | 0.0105 | Exploitation Less Likely |
| Urgent | CVE-2023-21541 | Windows Task Scheduler | Elevation of Privilege | 7.8 | 0.0053 | More likely |
| Urgent | CVE-2023-21730 | Windows Cryptographic Services | Elevation of Privilege | 7.8 | 0.0049 | Exploitation Less Likely |
| Urgent | CVE-2023-21726 | Windows Credential Manager | Elevation of Privilege | 7.8 | 0.0046 | More likely |
| Urgent | CVE-2023-21561 | Windows Cryptographic Services | Elevation of Privilege | 7.8 | 0.0046 | Exploitation Less Likely |
| Urgent | CVE-2023-21532 | Microsoft Graphics Component | Elevation of Privilege | 7.0 | 0.0042 | More likely |
| High | CVE-2023-21752 | Windows Backup Engine | Elevation of Privilege | 7.1 | 0.0555 | Exploitation Less Likely |
| High | CVE-2023-21746 | Windows NTLM | Elevation of Privilege | 7.8 | 0.0250 | Exploitation Less Likely |
| High | CVE-2023-21557 | Windows LDAP - Lightweight Directory Access Protocol | Denial of Service | 7.5 | 0.0219 | Exploitation Less Likely |
| High | CVE-2023-21527 | Windows iSCSI | Denial of Service | 7.5 | 0.0214 | Exploitation Less Likely |
| High | CVE-2023-21728 | Microsoft Local Security Authority Server (lsasrv) | Denial of Service | 7.5 | 0.0214 | Exploitation Less Likely |
| High | CVE-2023-21757 | Windows Remote Access Service L2TP Driver | Denial of Service | 7.5 | 0.0214 | Exploitation Less Likely |
| High | CVE-2023-21681 | Microsoft WDAC OLE DB provider for SQL | Remote Code Execution | 8.8 | 0.0149 | Exploitation Less Likely |
| High | CVE-2023-21732 | Windows ODBC Driver | Remote Code Execution | 8.8 | 0.0149 | Exploitation Less Likely |
| High | CVE-2023-21675 | Windows Virtual Registry Provider | Elevation of Privilege | 7.8 | 0.0087 | Exploitation Less Likely |
| High | CVE-2023-21747 | Windows Virtual Registry Provider | Elevation of Privilege | 7.8 | 0.0087 | Exploitation Less Likely |
| High | CVE-2023-21748 | Windows Virtual Registry Provider | Elevation of Privilege | 7.8 | 0.0087 | Exploitation Less Likely |
| High | CVE-2023-21749 | Windows Virtual Registry Provider | Elevation of Privilege | 7.8 | 0.0085 | Exploitation Less Likely |
| High | CVE-2023-21772 | Windows Virtual Registry Provider | Elevation of Privilege | 7.8 | 0.0076 | Exploitation Less Likely |
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