CVE-2025-49683 EXPLOIT
7.8
HIGH · CVSS 3.1 · EPSS 2.1% (pctl 81)
Patch early
A public exploit exists.
Description
Integer overflow or wraparound in Virtual Hard Disk (VHDX) allows an unauthorized attacker to execute code locally.
Scoring
| CVSS | 7.8 (HIGH, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| EPSS | 2.06% — more likely to be exploited than 81% of all CVEs |
| Weakness | CWE-122 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2025-07-08 |
| Last modified | 2026-06-17 |
Affected (15)
| Vendor | Product |
|---|---|
| microsoft | windows 10 1507 |
| microsoft | windows 10 1607 |
| microsoft | windows 10 1809 |
| microsoft | windows 10 21h2 |
| microsoft | windows 10 22h2 |
| microsoft | windows 11 22h2 |
| microsoft | windows 11 23h2 |
| microsoft | windows 11 24h2 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
| microsoft | windows server 2022 |
| microsoft | windows server 2022 23h2 |
| microsoft | windows server 2025 |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Virtual Hard Disk (VHDX) 11 - Remote Code Execution (RCE) | 2025-08-03 |
→ the Explorer · watch your stack · NVD