CVE-2026-21100
HighCVSS 7.1Exploitation Probability (EPSS)
Low risk1th percentile - higher than 1% of all known CVEs
Summary
Improper access control in SystemUI prior to SMR Sep-2026 Release 1 allows local attackers to launch arbitrary activity.
Risk Assessment
Risk includes potential launch of unauthorized system functions, which could lead to privilege escalation or privacy breach.
Recommendation
Install SMR Sep-2026 Release 1 or later, which includes the fix.
Other vulnerabilities in SystemUI
See all- CVE-2017-5350High
Samsung Note devices with L(5.0/5.1), M(6.0), and N(7.0) software allow attackers to crash systemUI by leveraging incomplete exception handling.
- CVE-2016-9277High
Integer overflow in SystemUI in KK(4.4) and L(5.0/5.1) on Samsung Note devices allows attackers to cause a denial of service (UI restart) via vectors involving APIs and an activity that computes an out-of-bounds array index.
- CVE-2016-7160High
A vulnerability on Samsung Mobile M (6.0) devices exists due to improper restriction of external access to SystemUI activities, leading to a SystemUI crash and device restart.
- CVE-2015-6621High
SystemUI in Android 5.x before version 5.1.1 LMY48Z and 6.0 before December 1, 2015, allows attackers to gain privileges via a crafted application, enabling access to Signature or SignatureOrSystem levels.
- CVE-2020-0415Medium
In various locations in SystemUI, there is a possible permission bypass due to an unsafe PendingIntent. This could lead to local information disclosure of contact data with User execution privileges needed.
Original NVD description (English source)
Improper access control in SystemUI prior to SMR Sep-2026 Release 1 allows local attackers to launch arbitrary activity.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS