# CVE-2026-96965: Microsoft Windows Hyper-V null pointer dereference DoS

Source: https://junglewise.ai/threats/cve-2026-96965-null-pointer-dereference-in-windows-hyper-v-allows-an-authorized  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-10. Updated: 2026-11-10  
License: CC BY 4.0 with a link back

CVE-2026-96965 · Severity: medium · CVSS 5.3 · Published 2026-11-10

Windows Hyper-V, Microsoft's virtualization platform for running virtual machines on Windows servers, contains a null pointer dereference flaw. An authorized user with access to a Hyper-V host can exploit this to crash the hypervisor, disrupting all virtual machines running on that host and causing service outages.

Technologies: [Microsoft Windows Hyper-V](https://junglewise.ai/threats/technologies/windows-hyper-v). Vendors: [Microsoft](https://junglewise.ai/threats/vendors/microsoft).

## Quick answers

**Is CVE-2026-96965 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-96965 being exploited in the wild.

**How severe is CVE-2026-96965?** Medium severity, with a CVSS score of 5.3, published 10 November 2026.

**Which products and versions are affected?** Microsoft Windows Hyper-V.

**Is there a fix for CVE-2026-96965?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-96965 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2026-96965?** Check whether you run Microsoft Windows Hyper-V. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A null pointer dereference vulnerability in Windows Hyper-V allows an authenticated attacker to trigger a denial of service condition through a local attack vector. The flaw requires valid access to the Hyper-V host to trigger. Exploitation crashes the hypervisor process, denying service to all dependent virtual machines. Microsoft has patched this vulnerability.

## Affected products

- Microsoft Windows Hyper-V

## Timeline

- 2026-11-10: disclosed

## References

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96965](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96965)

## Related threats

- [Microsoft Windows Hyper-V certificate validation bypass](https://junglewise.ai/threats/cve-2026-95910-improper-certificate-validation-in-windows-hyper-v-allows-an)
- [Microsoft Windows Hyper-V uninitialized resource privilege escalation](https://junglewise.ai/threats/cve-2026-119960-use-of-uninitialized-resource-in-windows-hyper-v-allows-an)
- [Windows Hyper-V access control spoofing vulnerability](https://junglewise.ai/threats/cve-2026-119959-improper-access-control-in-windows-hyper-v-allows-an-authorized)
- [Windows Hyper-V use-after-free privilege elevation](https://junglewise.ai/threats/cve-2026-119826-use-after-free-in-windows-hyper-v-allows-an-authorized-attacker)
- [Microsoft Windows Hyper-V use-after-free privilege escalation](https://junglewise.ai/threats/cve-2026-119391-use-after-free-in-windows-hyper-v-allows-an-authorized-attacker)