CVE-2024-21320: Windows Themes Spoofing Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 22.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-01-09 · updated 2026-06-17
Weakness: CWE-200

Description

Windows Themes Spoofing Vulnerability

Affected products

Microsoft Windows 10 Version 1507: before 10.0.10240.20402 — fixed in 10.0.10240.20402
Microsoft Windows 10 1607: before 10.0.14393.6614 — fixed in 10.0.14393.6614
Microsoft Windows 10: before 10.0.17763.5329 — fixed in 10.0.17763.5329
Microsoft Windows 10: before 10.0.19044.3930 — fixed in 10.0.19044.3930
Microsoft Windows 10: before 10.0.19045.3930 — fixed in 10.0.19045.3930
Microsoft Windows 11 21H2: before 10.0.22000.2713 — fixed in 10.0.22000.2713
Microsoft Windows 11: before 10.0.22621.3007 — fixed in 10.0.22621.3007
Microsoft Windows 11: before 10.0.22631.3007 — fixed in 10.0.22631.3007
Microsoft Windows Server 2012: r2
Microsoft Windows Server 2016: before 10.0.14393.6614 — fixed in 10.0.14393.6614
Microsoft Windows Server 2019: before 10.0.17763.5329 — fixed in 10.0.17763.5329
Microsoft Windows Server 2022: before 10.0.20348.2227 — fixed in 10.0.20348.2227
Microsoft Windows 10 Version 1507: from 10.0.10240.0 before 10.0.10240.20402 — fixed in 10.0.10240.20402
Microsoft Windows 10 1607: from 10.0.14393.0 before 10.0.14393.6614 — fixed in 10.0.14393.6614
Microsoft Windows 10: from 10.0.17763.0 before 10.0.17763.5329 — fixed in 10.0.17763.5329
Microsoft Windows 10: from 10.0.19043.0 before 10.0.19044.3930 — fixed in 10.0.19044.3930
Microsoft Windows 10: from 10.0.19045.0 before 10.0.19045.3930 — fixed in 10.0.19045.3930
Microsoft Windows 11 21H2: from 10.0.0 before 10.0.22000.2713 — fixed in 10.0.22000.2713
Microsoft Windows 11: from 10.0.22621.0 before 10.0.22621.3007 — fixed in 10.0.22621.3007
Microsoft Windows 11 version 22H3: from 10.0.22631.0 before 10.0.22631.3007 — fixed in 10.0.22631.3007
Microsoft Windows 11: from 10.0.22631.0 before 10.0.22631.3007 — fixed in 10.0.22631.3007
Microsoft Windows Server 2012: from 6.2.9200.0 before 6.2.9200.24664 — fixed in 6.2.9200.24664
Microsoft Windows Server 2012 R2: from 6.3.9600.0 before 6.3.9600.21765 — fixed in 6.3.9600.21765
Microsoft Windows Server 2016: from 10.0.14393.0 before 10.0.14393.6614 — fixed in 10.0.14393.6614
Microsoft Windows Server 2019: from 10.0.17763.0 before 10.0.17763.5329 — fixed in 10.0.17763.5329
Microsoft Windows Server 2022: from 10.0.20348.0 before 10.0.20348.2227 — fixed in 10.0.20348.2227

How to fix

Upgrade to a fixed version: Microsoft Windows 10 Version 1507 10.0.10240.20402; Microsoft Windows 10 1607 10.0.14393.6614; Microsoft Windows 10 10.0.17763.5329; Microsoft Windows 10 10.0.19044.3930; Microsoft Windows 10 10.0.19045.3930; Microsoft Windows 11 21H2 10.0.22000.2713; Microsoft Windows 11 10.0.22621.3007; Microsoft Windows 11 10.0.22631.3007; Microsoft Windows Server 2016 10.0.14393.6614; Microsoft Windows Server 2019 10.0.17763.5329; Microsoft Windows Server 2022 10.0.20348.2227; Microsoft Windows 10 Version 1507 10.0.10240.20402. Check the vendor advisory for mitigations.

References

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