Lucene search
+L

January 13, 2026—KB5073455 (OS Build 22631.6491)

🗓️ 13 Jan 2026 16:00:00Reported by MicrosoftType 
mskb
 mskb
🔗 support.microsoft.com👁 26 Views

Windows 11 23H2 KB5073455 update with security and non-security fixes; notes Secure Boot expiry.

Related

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

13 Jan 2026 16:00Current
6.8Medium risk
Vulners AI Score6.8
CVSS 3.17.8 - 9.8
CVSS 47.2
EPSS0.74866
SSVC
26