What is CVE-2022-1651?

CVE-2022-1651 is a high-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.1/10. Published 2022-07-26.

How severe is CVE-2022-1651?

High severity. CVSS v3 base score is 7.1 out of 10.

Vulnerability in Linux Kernel

CVE-2022-1651

A memory leak flaw was found in the Linux kernel in acrn_dev_ioctl in the drivers/virt/acrn/hsm.c function in how the ACRN Device Model emulates virtual NICs in VM. This flaw allows a local privileged attacker to leak unauthorized kernel information, causing a denial of service.

Published 2022-07-26 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (15.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 15.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

Linux Kernel
Kernel — versions Linux kernel version prior to kernel 5.18 rc1

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
security.netapp.com/advisory/ntap-20220901-0008/ (Third Party Advisory)

Frequently asked questions

What is CVE-2022-1651?: CVE-2022-1651 is a high-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 7.1/10. Published 2022-07-26.
How severe is CVE-2022-1651?: High severity. CVSS v3 base score is 7.1 out of 10.