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Fencer Vulns
medium 6.5

CVE-2024-21320 json

Windows Themes Spoofing Vulnerability

published 2024-01-09 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-19032

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
22.6%
EPSS 22.6% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

Windows Themes Spoofing Vulnerability

Patch / fix

  • Microsoft Windows 10 Version 1809 10.0.17763.5329
  • Microsoft Windows Server 2019 10.0.17763.5329
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.5329
  • Microsoft Windows Server 2022 10.0.20348.2227
  • Microsoft Windows 11 version 21H2 10.0.22000.2713
  • Microsoft Windows 10 Version 21H2 10.0.19044.3930
  • Microsoft Windows 11 version 22H2 10.0.22621.3007
  • Microsoft Windows 10 Version 22H2 10.0.19045.3930
  • Microsoft Windows 11 version 22H3 10.0.22631.3007
  • Microsoft Windows 11 Version 23H2 10.0.22631.3007
  • Microsoft Windows 10 Version 1507 10.0.10240.20402
  • Microsoft Windows 10 Version 1607 10.0.14393.6614
  • Microsoft Windows Server 2016 10.0.14393.6614
  • Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.6614
  • Microsoft Windows Server 2012 6.2.9200.24664
  • Microsoft Windows Server 2012 (Server Core installation) 6.2.9200.24664
  • Microsoft Windows Server 2012 R2 6.3.9600.21765
  • Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.21765

Timeline

  1. Published
  2. First public exploit (EDB-52092)

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

22.60% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-52092 Microsoft Windows - NTLM Hash Leak Malicious Windows Theme remote, 2025-03-22

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Affected products

  • Microsoft Windows 10 Version 1809
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows Server 2022
  • Microsoft Windows 11 version 21H2
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows 10 Version 1507
  • Microsoft Windows 10 Version 1607
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2016 (Server Core installation)
  • Microsoft Windows Server 2012
  • Microsoft Windows Server 2012 (Server Core installation)
  • Microsoft Windows Server 2012 R2
  • Microsoft Windows Server 2012 R2 (Server Core installation)

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.