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The vulnerability of the SMB server of the Windows operating system, which allows a hacker to increase their privileges
🗓️ 15 Jan 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 1 Views
| Reporter | Title | Published | Views | Family All 42 |
|---|---|---|---|---|
 | CVE-2026-20921 | 13 Jan 202617:56 | – | attackerkb |
 | CVE-2026-20921 | 13 Jan 202618:01 | – | circl |
 | Microsoft Windows SMB Server 竞争条件问题漏洞 | 13 Jan 202600:00 | – | cnnvd |
 | Microsoft Windows SMB Server Elevation of Privilege Vulnerability (CNVD-2026-10677) | 19 Jan 202600:00 | – | cnvd |
 | CVE-2026-20921 | 13 Jan 202617:56 | – | cve |
 | CVE-2026-20921 Windows SMB Server Elevation of Privilege Vulnerability | 13 Jan 202617:56 | – | cvelist |
 | EUVD-2026-2122 | 13 Jan 202617:56 | – | euvd |
 | Security information for Hitachi Disk Array Systems | 20 Feb 202609:35 | – | jvn |
 | January 13, 2026—KB5073379 (OS Build 26100.32230) | 13 Jan 202616:00 | – | mskb |
| January 13, 2026—KB5073450 (OS Build 25398.2092) | 13 Jan 202616:00 | – | mskb |
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15 Jan 2026 00:00Current
5.7Medium risk
Vulners AI Score5.7
CVSS 27.1
CVSS 37.5
EPSS0.01154