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Fencer Vulns
medium 4.9

CVE-2023-42559 json

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

published 2023-12-05 2 y ago modified 2026-06-17 4 mo ago also EUVD-2023-46992

cvss
4.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

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

Patch / fix

  • Samsung Mobile Samsung Mobile Devices SMR Dec-2023 Release in Android 11, 12, 13, 14

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 4.9 CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
NVD 3.1 5.2 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Affected products

  • Samsung Mobile Samsung Mobile Devices

Classification

Weakness
  • CWE-755 Improper Handling of Exceptional Conditions

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.