What is CVE-2021-44458?

CVE-2021-44458 is a high-severity vulnerability in Linux Kernel, classified under Improper Authentication. CVSS score: 8.3/10. Published 2022-01-10.

How severe is CVE-2021-44458?

High severity. CVSS v3 base score is 8.3 out of 10.

Auth bypass in Linux Kernel

CVE-2021-44458

Linux users running Lens 5.2.6 and earlier could be compromised by visiting a malicious website. The malicious website could make websocket connections from the victim's browser to Lens and so operate the local terminal feature. This would allow the attacker to execute arbitrary commands as the Lens user.

Vulnerability class: Broken Authentication

Published 2022-01-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (35.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.0% 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
Mirantis Lens — versions 5.2

Weakness classification (CWE)

References

github.com/Mirantis/security/blob/main/advisories/0001.md (Third Party Advisory)

Frequently asked questions

What is CVE-2021-44458?: CVE-2021-44458 is a high-severity vulnerability in Linux Kernel, classified under Improper Authentication. CVSS score: 8.3/10. Published 2022-01-10.
How severe is CVE-2021-44458?: High severity. CVSS v3 base score is 8.3 out of 10.