CVE-2026-48566 json
Windows DWM Core Library Information Disclosure Vulnerability
published 2026-06-09 5 mo ago modified 2026-09-24 46 d ago also EUVD-2026-35520
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 33%
- public exploits
- 0
- none known
Summary
Out-of-bounds read in Windows DWM Core Library allows an authorized attacker to elevate privileges locally.
Patch / fix
- Microsoft Windows 11 Version 24H2 10.0.26100.8457
- Microsoft Windows 11 Version 25H2 10.0.26200.8457
- Microsoft Windows 11 version 26H1 10.0.28000.2113
- Microsoft Windows Server 2025 10.0.26100.32860
- Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.32860
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected products
- Microsoft Windows 11 Version 24H2
- Microsoft Windows 11 Version 25H2
- Microsoft Windows 11 version 26H1
- Microsoft Windows Server 2025
- Microsoft Windows Server 2025 (Server Core installation)
Classification
- Weakness
-
- CWE-125 Out-of-bounds Read
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-48566
vendor-advisory, patch
Sources
- CVE List CVE-2026-48566
- NVD CVE-2026-48566
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