Improper Authentication in Samsung Flow - CVE-2026-21134
Published: October 6, 2026
Vulnerability identifier: #VU153322
CSH Severity: Medium
CVSS v4: 7.1 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-21134
CWE-ID: CWE-287
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error when processing authentication requests. A remote attacker on the local network can bypass authentication process and access sensitive information.
Affected software
Samsung Flow
How to mitigate CVE-2026-21134
Install updates from vendor's website.
Samsung Flow - update to 4.9.22.4