CVE-2022-36661 Null dereference in n/a

Medium 6.5 Published 7 Sep 2022 Updated 17 Jun 2025

Attackers can cause a Denial of Service in the xhyve hypervisor via a NULL pointer dereference in the vi_pci_read component.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-36661?

CVE-2022-36661 is a medium-severity vulnerability in n/a, published on 7 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

xhyve commit dfbe09b was discovered to contain a NULL pointer dereference via the component vi_pci_read(). This vulnerability allows attackers to cause a Denial of Service via unspecified vectors.

Weakness: CWE-476

Which versions are affected by CVE-2022-36661?

It affects 1 product.

Products include Xhyve Project Xhyve.

How do I fix CVE-2022-36661?

No fix has been published for CVE-2022-36661 yet. Limit exposure of the affected software until one is available.

Is CVE-2022-36661 being exploited?

There is no known exploitation of CVE-2022-36661 in the wild and no public exploit code.

Sources

Also known as GHSA-f499-35rg-394j.