Improper access control in Samsung Continuity Service - CVE-2026-21139
Published: October 6, 2026
Vulnerability identifier: #VU153324
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21139
CWE-ID: CWE-284
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions. A remote attacker on the local network can manipulate the connected mobile device.
Affected software
Samsung Continuity Service
How to mitigate CVE-2026-21139
Install updates from vendor's website.
Samsung Continuity Service - update to 4.6.1217.0