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Vulnerability record · CVE-2026-21100 · published 9 September 2026

CVE-2026-21100: Samsung android improper access control vulnerability

Samsung · Android

Improper access control in SystemUI prior to SMR Sep-2026 Release 1 allows local attackers to launch arbitrary activity.

6.9 CVSS 4.0 Medium EPSS 0.09% · top 99.5% CWE-284 · Improper access control
6.9CVSS 4.0 base score
0.09%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
10 Sep 2026Last modified by NVD

Description

Improper access control in SystemUI prior to SMR Sep-2026 Release 1 allows local attackers to launch arbitrary activity.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=09 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-21100), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.