Windows 10 Version 21H2 vulnerabilities | LiveThreat CVE Feed

Product

Windows 10 Version 21H2

by Microsoft · last CVE Oct 13, 2026

On CISA KEVExploited in the wildRansomware-linked

3,580

CVEs

100

On KEV

9.9

Max CVSS

512

New 30D

Vulnerabilities3,580 In the news12 Timeline

Severity mix

Critical 112High 371Medium 17Low 0

Severity

All severities500 Critical112 High371 Medium17 Low0

Exploitation

On CISA KEV100 Exploited in the wild100

Watch

Add Windows 10 Version 21H2 to your stack to get only the CVEs that touch what you run.

CVE	CVSS	EPSS	Published	Summary · affected versions
CVE-2023-21554	9.8	95%	Apr 11	Microsoft Message Queuing (MSMQ) Remote Code Execution Vulnerability Affected: before 10.0.19044.2846
CVE-2023-23415	9.8	3%	Mar 14	Internet Control Message Protocol (ICMP) Remote Code Execution Vulnerability Affected: before 10.0.19044.2728
CVE-2023-21708	9.8	1%	Mar 14	Remote Procedure Call Runtime Remote Code Execution Vulnerability Affected: before 10.0.19044.2728
CVE-2023-21803	9.8	2%	Feb 14	Windows iSCSI Discovery Service Remote Code Execution Vulnerability Affected: before 10.0.19044.2604
CVE-2023-21692	9.8	21%	Feb 14	Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability Affected: before 10.0.19044.2604; before 10.0.19044.2604; before 10.0.19044.2604
CVE-2023-21690	9.8	28%	Feb 14	Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability Affected: before 10.0.19044.2604; before 10.0.19044.2604; before 10.0.19044.2604
CVE-2023-21689	9.8	27%	Feb 14	Microsoft Protected Extensible Authentication Protocol (PEAP) Remote Code Execution Vulnerability Affected: before 10.0.19044.2604; before 10.0.19044.2604; before 10.0.19044.2604
CVE-2026-50380	9.6	1%	Jul 14	Windows GDI+ Remote Code Execution Vulnerability Affected: before 10.0.19044.7548; before 10.0.19044.7548; before 10.0.19044.7548
CVE-2026-42904	9.6	0%	Jun 9	Windows TCP/IP Elevation of Privilege Vulnerability Affected: before 10.0.19044.7417; before 10.0.19044.7417; before 10.0.19044.7417
CVE-2026-49798	9.3	0%	Jul 14	Windows Kernel Elevation of Privilege Vulnerability Affected: before 10.0.19044.7548; before 10.0.19044.7548; before 10.0.19044.7548
CVE-2026-45602	9.1	0%	Jun 9	Windows Dynamic Host Configuration Protocol (DHCP) Tampering Vulnerability Affected: before 10.0.19044.7417; before 10.0.19044.7417; before 10.0.19044.7417
CVE-2026-105008	9.0	1%	Oct 13	Windows Schannel Spoofing Vulnerability Affected: before 10.0.19044.7807; before 10.0.19044.7807; before 10.0.19044.7807