CVE-2026-57008 in Android
Summary
by MITRE • 09/15/2026
In Modem, there is a possible information disclosure due to improper input validation. This could lead to remote information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.
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Analysis
by VulDB Data Team • 09/15/2026
The identified vulnerability in the modem firmware represents a critical security flaw rooted in insufficient input validation mechanisms within the device's network stack or management interface. Modems serve as essential gateways between local networks and wide area networks, often handling sensitive configuration data and maintaining persistent connections to service provider infrastructure. When improper input validation is present, it typically indicates that the system fails to adequately sanitize, verify, or constrain user-supplied data before processing it for internal operations. This lack of rigorous checking allows attackers to inject malformed or specially crafted inputs that bypass expected logical boundaries within the modem's software architecture. The consequence of this architectural weakness is a direct pathway for remote information disclosure, where an adversary can extract confidential system details without needing prior authentication or elevated privileges on the target device.
From a technical perspective, this vulnerability likely stems from buffer handling errors, such as off-by-one mistakes, integer overflows, or improper string termination checks during the parsing of network packets or configuration files. In many modem implementations, components responsible for processing DHCP requests, PPPoE sessions, or TR-069 management protocols may accept external inputs without sufficient length checking or type verification. An attacker can exploit this by sending a specifically crafted packet that triggers an out-of-bounds read operation or forces the device to return internal memory contents in its response payload. Because the modem operates continuously and often exposes certain services directly to the untrusted internet, the attack surface is significantly expanded. The absence of required user interaction means that automated scanning tools can rapidly identify and exploit these weaknesses across large networks, turning a single vulnerability into a widespread threat vector for botnet recruitment or further lateral movement within an organization's infrastructure.
The operational impact of this information disclosure extends beyond simple data leakage. By exposing internal IP addresses, firmware versions, MAC addresses, and potentially session tokens or cryptographic keys stored in volatile memory, attackers gain valuable intelligence that facilitates more sophisticated attacks. This initial foothold can be leveraged to bypass network segmentation strategies, as knowledge of the modem's role and connected devices allows for targeted exploitation of downstream assets. Furthermore, disclosed configuration details may reveal default credentials or misconfigured firewall rules, effectively neutralizing perimeter defenses. The fact that no additional execution privileges are needed lowers the barrier to entry significantly, enabling low-skilled threat actors to compromise high-value targets. This aligns with common attack patterns observed in real-world scenarios where modems and routers serve as initial access points for broader network intrusions.
In terms of industry standards classification, this vulnerability corresponds closely to CWE-20 Improper Input Validation and potentially CWE-200 Exposure of Sensitive Information to an Unauthorized Actor. The exploitation technique mirrors behaviors documented in the MITRE ATT&CK framework under T1537, which covers Communication Through Remotely Accessible API or Service, as well as aspects of reconnaissance where adversaries gather information about network architecture before proceeding with active exploitation. To mitigate this risk, vendors must implement strict input sanitization protocols that enforce type checking, length constraints, and format validation for all external inputs processed by the modem's firmware. Developers should adopt secure coding practices such as using bounds-checked libraries and conducting regular static code analysis to identify logic errors early in the development lifecycle. Additionally, deploying network-level controls like intrusion detection systems can help monitor for anomalous packet patterns indicative of exploitation attempts. Users should ensure their modems are updated with the latest security patches provided by manufacturers, which often include fixes for these foundational validation flaws, thereby reducing the window of exposure to remote attackers seeking to compromise network integrity and confidentiality.