What is CVE-2022-36660?

CVE-2022-36660 is a critical-severity vulnerability in Xhyve Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-09-07.

How severe is CVE-2022-36660?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Xhyve Project

CVE-2022-36660

xhyve commit dfbe09b was discovered to contain a stack buffer overflow via the component pci_vtrnd_notify().

Vulnerability class: Buffer Overflow

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.0th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 62.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.001

Affected products

Xhyve Project — versions 2021-10-02

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

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

Frequently asked questions

What is CVE-2022-36660?: CVE-2022-36660 is a critical-severity vulnerability in Xhyve Project, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2022-09-07.
How severe is CVE-2022-36660?: Critical severity. CVSS v3 base score is 9.8 out of 10.