CVE-2025-49683
HighPublished
Microsoft Virtual Hard Disk Remote Code Execution Vulnerability
- Published
- Jul 8, 2025
- Updated
- Feb 13, 2026
- Assigning CNA
- microsoft
- Evidence observed
- Aug 3, 2025
Primary CVSS
7.8/ 10High
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.9%
Low · next 30 days
- Percentile
- 78.5%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
Integer overflow or wraparound in Virtual Hard Disk (VHDX) allows an unauthorized attacker to execute code locally.
Sources
1nu11secur1ty · windows · Aug 3, 2025
Responsible use
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