SB2026081154 - Information disclosure in Microsoft Windows Hyper-V
Published: August 11, 2026
Security Bulletin ID
SB2026081154
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2026-61368)
CWE-ID: CWE-122 - Heap-based Buffer Overflow
CVSSv4: 5.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local user to compromise the target system.
The vulnerability exists due to a boundary error in Windows Hyper-V. A local user can pass specially crafted data to the application, trigger a heap-based buffer overflow and gain access to sensitive information on the system.
Remediation
Install update from vendor's website.