CVE-2026-35090
CriticalSummary
In Slican telephone exchanges, it is possible to manage the control panel remotely. An unauthenticated attacker can connect to the modem via a telephone with a specific caller ID, allowing them to bypass admin authentication and gain full access to the service protocol and configuration panel.
Risk Assessment
This vulnerability poses a serious risk to organizations, enabling attackers to fully take control of the telephone system, potentially leading to data loss and service disruption.
Recommendation
It is recommended to update to the latest software versions to mitigate this vulnerability. Users of older telephone exchanges should consider hardware replacement, as these devices will no longer receive updates.
Original NVD description (English source)
In Slican telephone exchanges it is possible to manage the control panel remotely. An unauthenticated attacker can connect to the modem via a telephone with a specific caller ID. This allows them to bypass admin authentication and gain full access to the service protocol and configuration panel. This vulnerability is independent of the telephone exchanges configuration. If remote access is disabled, calling with this caller ID will temporarily enable it. This issue was fixed in versions below: - IPL-256: version 6.61.0040 - IPM-032: version 6.61.0040 - CCT-1668: version 6.56.0430 - MAC-6400: version 6.56.0430 - CXS-0424: version 6.30.0510 The issue STILL EXISTS in End-Of-Life telephone exchanges in versions 4.xx and below: - CCT-1668 (CCT1CPU) - MAC-6400 - CXS-0424 These products were discontinued in 2011 and 2012 and and will not receive updates. These products require a hardware update in order to receive a software update. The vendor recommends that users of these devices contact