What is CVE-2022-36661?

CVE-2022-36661 is a medium-severity vulnerability in Xhyve Project, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-09-07.

How severe is CVE-2022-36661?

Medium severity. CVSS v3 base score is 6.5 out of 10.

NULL pointer dereference in Xhyve Project

CVE-2022-36661

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.

Published 2022-09-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.009 (56.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.009 · change: +0.001

Affected products

Xhyve Project — versions 2021-10-02

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

awxylitol.github.io/2022/07/21/disclose-three-bugs-in-xhyve.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-36661?: CVE-2022-36661 is a medium-severity vulnerability in Xhyve Project, classified under NULL Pointer Dereference. CVSS score: 6.5/10. Published 2022-09-07.
How severe is CVE-2022-36661?: Medium severity. CVSS v3 base score is 6.5 out of 10.