CVE-2026-61368

MEDIUMCVSS 5/10EPSS 0.45%

Last modified

CVE-2026-61368 is a medium-severity vulnerability rated 5/10 on the CVSS scale. Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.

Metrics

CVSS 3.1
5/10

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

EPSS Probability
0.45%

37.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
MicrosoftWindows 10 Version 1607>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows 10 Version 1809>= 10.0.17763.0, < 10.0.17763.9115
MicrosoftWindows 10 Version 21H2>= 10.0.19044.0, < 10.0.19044.7663
MicrosoftWindows 10 Version 22H2>= 10.0.19045.0, < 10.0.19045.7663
MicrosoftWindows 11 version 23H2>= 10.0.22631.0, < 10.0.22631.7517
MicrosoftWindows 11 Version 23H2>= 10.0.22631.0, < 10.0.22631.7517
MicrosoftWindows 11 Version 24H2>= 10.0.26100.0, < 10.0.26100.9168
MicrosoftWindows 11 Version 25H2>= 10.0.26200.0, < 10.0.26200.9168
MicrosoftWindows 11 version 26H1>= 10.0.28000.0, < 10.0.28000.2704
MicrosoftWindows Server 2016>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows Server 2016 (Server Core installation)>= 10.0.14393.0, < 10.0.14393.9418
MicrosoftWindows Server 2019>= 10.0.17763.0, < 10.0.17763.9115
MicrosoftWindows Server 2019 (Server Core installation)>= 10.0.17763.0, < 10.0.17763.9115
MicrosoftWindows Server 2022>= 10.0.20348.0, < 10.0.20348.5499
MicrosoftWindows Server 2025>= 10.0.26100.0, < 10.0.26100.33296
MicrosoftWindows Server 2025 (Server Core installation)>= 10.0.26100.0, < 10.0.26100.33296

References

Timeline

Published
Last Modified
Status
Undergoing Analysis

Frequently Asked Questions

What is CVE-2026-61368?
Heap-based buffer overflow in Windows Hyper-V allows an authorized attacker to disclose information locally.
How severe is CVE-2026-61368?
CVE-2026-61368 has a CVSS score of 5/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2026-61368?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

How Strix Helps

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Source: NVD / NIST