What is CVE-2022-27950?

CVE-2022-27950 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2022-03-28.

How severe is CVE-2022-27950?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux Kernel

CVE-2022-27950

In drivers/hid/hid-elo.c in the Linux kernel before 5.16.11, a memory leak exists for a certain hid_parse error condition.

Published 2022-03-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.6th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Linux Kernel

Weakness classification (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

www.openwall.com/lists/oss-security/2022/03/13/1 (Patch, Mailing List, Third Party Advisory)
github.com/torvalds/linux/commit/817b8b9c5396d2b2d92311b46719aad5d3339dbe (Patch, Third Party Advisory)
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/ (Patch, Mailing List, Vendor Advisory)
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.11 (Patch, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2022-27950?: CVE-2022-27950 is a medium-severity vulnerability in Linux Kernel, classified under Missing Release of Memory after Effective Lifetime. CVSS score: 5.5/10. Published 2022-03-28.
How severe is CVE-2022-27950?: Medium severity. CVSS v3 base score is 5.5 out of 10.