Incorrect default permissions in Samsung Flow - CVE-2026-21131
Published: October 6, 2026
Vulnerability identifier: #VU153320
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21131
CWE-ID: CWE-276
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to compromise the target system.
The vulnerability exists due to incorrect default permissions. A local attacker can launch an arbitrary activity with Samsung Flow privileges on the connected device.
Affected software
Samsung Flow
How to mitigate CVE-2026-21131
Install updates from vendor's website.
Samsung Flow - update to 4.9.22.4