CVE-2026-26156
HIGH EPSS 32.9%
Published Apr 14, 20262mo ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
Published Apr 14, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago
Description
Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
32.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 3
CWE-122
CWE-125 Out-of-bounds Read Memory Safety
CWE-20 Improper Input Validation Validation
Affected Products 17
| Vendor | Product | Version | Range |
|---|---|---|---|
| microsoft | windows_10_1607 | * | <10.0.14393.9060 |
| microsoft | windows_10_1809 | * | <10.0.17763.8644 |
| microsoft | windows_10_21h2 | * | <10.0.19044.7184 |
| microsoft | windows_10_22h2 | * | <10.0.19045.7184 |
| microsoft | windows_11_23h2 | * | <10.0.22631.6936 |
| microsoft | windows_11_23h2 | * | <10.0.22631.6936 |
| microsoft | windows_11_24h2 | * | <10.0.26100.8246 |
| microsoft | windows_11_24h2 | * | <10.0.26100.8246 |
| microsoft | windows_11_25h2 | * | <10.0.26200.8246 |
| microsoft | windows_11_25h2 | * | <10.0.26200.8246 |
| microsoft | windows_11_26h1 | * | <10.0.28000.1836 |
| microsoft | windows_11_26h1 | * | <10.0.28000.1836 |
| microsoft | windows_server_2016 | * | <10.0.14393.9060 |
| microsoft | windows_server_2019 | * | <10.0.17763.8644 |
| microsoft | windows_server_2022 | * | <10.0.20348.5020 |
| microsoft | windows_server_2022_23h2 | * | <10.0.25398.2274 |
| microsoft | windows_server_2025 | * | <10.0.26100.32690 |
References 1
- msrc.microsoft.com https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26156
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.