SB2026010623 - Authentication bypass using an alternate path or channel in Plat'Home OpenBlocks series
Published: January 6, 2026
Security Bulletin ID
SB2026010623
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Authentication bypass using an alternate path or channel (CVE-ID: CVE-2026-21411)
CWE-ID: CWE-288 - Authentication Bypass Using an Alternate Path or Channel
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the authentication bypass using an alternate path or channel. A remote attacker on the local network can bypass administrator authentication and change the password.
Remediation
Install update from vendor's website.