Authentication bypass using an alternate path or channel in Century Systems products - CVE-2025-24846

Vulnerability identifier: #VU105108

CSH Severity: High

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-24846

CWE-ID: CWE-288

Exploitation vector: Remote access

Exploit availability: No public exploit available

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 can send a specially crafted request and obtain the device information such as MAC address.

FutureNet AS-250/KL Rev2
FutureNet AS-P250/NL
FutureNet AS-M250/NL
FutureNet AS-P250/KL
FutureNet AS-M250/KL
FutureNet AS-M250/L
FutureNet AS-210/U4
FutureNet AS-250/L
FutureNet AS-250/S
FutureNet AS-250/KL
FutureNet AS-250/NL
FutureNet AS-250/F-KO
FutureNet AS-250/F-SC

Install updates from vendor's website.

FutureNet AS-250/KL Rev2 - update to 3.1.1
FutureNet AS-P250/NL - update to 3.1.1
FutureNet AS-M250/NL - update to 3.1.1
FutureNet AS-P250/KL - update to 3.1.1
FutureNet AS-M250/KL - update to 3.1.1
FutureNet AS-M250/L - update to 3.1.1
FutureNet AS-210/U4 - update to 3.1.1
FutureNet AS-250/L - update to 3.1.1
FutureNet AS-250/S - update to 1.14.1
FutureNet AS-250/KL - update to 1.14.1
FutureNet AS-250/NL - update to 1.14.1

• https://jvn.jp/en/vu/JVNVU96398949/index.html
• https://www.centurysys.co.jp/backnumber/common/jvnvu96398949.html

• Multiple vulnerabilities in Century Systems FutureNet AS series and FA series