MEDIUM
Windows Hyper-V Information Disclosure Vulnerability
Published Aug 11, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.43%
Description
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.
Affected products
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9418
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9121
- Version
-
- Version 10.0.19044.0StatusaffectedConstraints<10.0.19044.7663
- Version
-
- Version 10.0.19045.0StatusaffectedConstraints<10.0.19045.7663
- Version
-
- Version 10.0.22631.0StatusaffectedConstraints<10.0.22631.7517
- Version
-
- Version 10.0.26100.0StatusaffectedConstraints<10.0.26100.9168
- Version
-
- Version 10.0.26200.0StatusaffectedConstraints<10.0.26200.9168
- Version
-
- Version 10.0.22631.0StatusaffectedConstraints<10.0.22631.7517
- Version
-
- Version 10.0.28000.0StatusaffectedConstraints<10.0.28000.2704
- Version
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9418
- Version
-
- Version 10.0.14393.0StatusaffectedConstraints<10.0.14393.9418
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9121
- Version
-
- Version 10.0.17763.0StatusaffectedConstraints<10.0.17763.9121
- Version
-
- Version 10.0.20348.0StatusaffectedConstraints<10.0.20348.5499
- Version
-
- Version 10.0.26100.0StatusaffectedConstraints<10.0.26100.33296
- Version
-
- Version 10.0.26100.0StatusaffectedConstraints<10.0.26100.33296
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Microsoft | Windows 10 Version 1607 | n/a |
| ||||||
| Microsoft | Windows 10 Version 1809 | n/a |
| ||||||
| Microsoft | Windows 10 Version 21H2 | n/a |
| ||||||
| Microsoft | Windows 10 Version 22H2 | n/a |
| ||||||
| Microsoft | Windows 11 Version 23H2 | n/a |
| ||||||
| Microsoft | Windows 11 Version 24H2 | n/a |
| ||||||
| Microsoft | Windows 11 Version 25H2 | n/a |
| ||||||
| Microsoft | Windows 11 version 23H2 | n/a |
| ||||||
| Microsoft | Windows 11 version 26H1 | n/a |
| ||||||
| Microsoft | Windows Server 2016 | n/a |
| ||||||
| Microsoft | Windows Server 2016 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2019 | n/a |
| ||||||
| Microsoft | Windows Server 2019 (Server Core installation) | n/a |
| ||||||
| Microsoft | Windows Server 2022 | n/a |
| ||||||
| Microsoft | Windows Server 2025 | n/a |
| ||||||
| Microsoft | Windows Server 2025 (Server Core installation) | n/a |
|
OR
- < 10.0.14393.9418
- < 10.0.14393.9418
- < 10.0.17763.9115
- < 10.0.17763.9115
- < 10.0.19044.7663
- < 10.0.19044.7663
- < 10.0.19044.7663
- < 10.0.19045.7663
- < 10.0.19045.7663
- < 10.0.19045.7663
- < 10.0.22631.7517
- < 10.0.22631.7517
- < 10.0.26100.9106
- < 10.0.26100.9106
- < 10.0.26200.9106
- < 10.0.26200.9106
- < 10.0.28000.2704
- < 10.0.28000.2704
- < 10.0.14393.9418
- < 10.0.17763.9115
- < 10.0.20348.5440
- < 10.0.26100.33222
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (1)
References (2)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56329 Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61368 vendor-advisorypatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-56329 | Advisory | |
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-61368 | vendor-advisorypatchVendor Advisory |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner microsoft
Published Aug 11, 2026
Updated Sep 29, 2026
Reserved Jul 8, 2026
Link CVE-2026-61368
CISA Vulnrichment
Updated Aug 12, 2026
ENISA EUVD
EUVD-2026-56329 Assigner microsoft
Published Aug 11, 2026
Updated Sep 29, 2026
Exploited since n/a
Link EUVD-2026-56329