CVE-2022-40297

Name: CVE-2022-40297
Creator: NVD / NIST
Published: 2022-09-09T00:15:08.793+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.45%

Last modified Jun 17, 2026

CVE-2022-40297 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. UBports Ubuntu Touch 16.04 allows the screen-unlock passcode to be used for a privileged shell via Sudo. This passcode is only four digits, far below typical length/complexity for a user account's password. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

UBports Ubuntu Touch 16.04 allows the screen-unlock passcode to be used for a privileged shell via Sudo. This passcode is only four digits, far below typical length/complexity for a user account's password. NOTE: a third party states "The described attack cannot be executed as demonstrated.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.45%

36.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Ubports	Ubuntu Touch	16.04

References

https://github.com/filipkarc/PoC-ubuntutouch-pin-privescExploit, Third Party Advisory
https://github.com/filipkarc/PoC-ubuntutouch-pin-privescExploit, Third Party Advisory

Timeline

Published: Sep 9, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-40297?

How severe is CVE-2022-40297?

CVE-2022-40297 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.

How do I fix CVE-2022-40297?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-40297?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST