CVE-2023-42559

Name: CVE-2023-42559
Creator: NVD / NIST
Published: 2023-12-05T03:15:15.557+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.2/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2023-42559 is a medium-severity vulnerability rated 5.2/10 on the CVSS scale. Improper exception management vulnerability in Knox Guard prior to SMR Dec-2023 Release 1 allows Knox Guard lock bypass via changing system time.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

Improper exception management vulnerability in Knox Guard prior to SMR Dec-2023 Release 1 allows Knox Guard lock bypass via changing system time.

Metrics

CVSS 3.1

5.2/10

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

EPSS Probability

0.32%

24.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-755

Affected Software

Vendor	Product	Versions
Samsung	Android	>= 11.0, < 14.0
Samsung	Android	14.0

References

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=12Vendor Advisory
https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=12Vendor Advisory

Timeline

Published: Dec 5, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-42559?

Improper exception management vulnerability in Knox Guard prior to SMR Dec-2023 Release 1 allows Knox Guard lock bypass via changing system time.

How severe is CVE-2023-42559?

CVE-2023-42559 has a CVSS score of 5.2/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-42559?

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-2023-42559?

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

Scan your code now

Source: NVD / NIST