Vulnerability Report

CVE-2026-26156

Title: Windows Hyper-V Remote Code Execution Vulnerability

Memory Corruption

Proof Of Concept

No public PoC currently indexed for CVE-2026-26156.

CWE Category CWE-20

Published Date Apr 14, 2026

Modified Date Apr 24, 2026

Exploit Status Not Found

Score 7.8 CVSS v3.1

Exploit Probability (EPSS)

0.41%

Vulnerability Summary

CVE-2026-26156: Heap-based buffer overflow in Windows Hyper-V allows an unauthorized attacker to execute code locally.

Impacted Vendors

microsoft 13

Reference Links

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26156

CVSS v3.1

Source Entity [email protected]

Severity HIGH

7.8

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

REQUIRED

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-26156 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

April 24, 2026 MODIFIED

Vulnerability data updated via NVD.

April 24, 2026 MODIFIED

Vulnerability data updated via NVD.

April 17, 2026 MODIFIED

Vulnerability data updated via NVD.

April 14, 2026 MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction REQUIRED

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.