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Fencer Vulns
medium 5.2

CVE-2025-21047 json

Improper access control in KnoxGuard prior to SMR Oct-2025 Release 1 allows physical attackers to use the privileged APIs.

published 2025-10-10 12 mo ago modified 2026-10-08 31 d ago also EUVD-2025-33684

cvss
5.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

Improper access control in KnoxGuard prior to SMR Oct-2025 Release 1 allows physical attackers to use the privileged APIs.

Patch / fix

  • Samsung Mobile Samsung Mobile Devices SMR Oct-2025 Release in Android 14, 15, 16

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
12 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.2 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
NVD 3.1 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Samsung Mobile Samsung Mobile Devices

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.