Description

In Modem, there is a possible system crash due to improper input validation. This could lead to local denial of service with User execution privileges needed. User interaction is needed for exploitation. Patch ID: MOLY01810811; Issue ID: MSV-9232.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "5.5",
  "pubDate": "2026-09-07T02:17:18.673Z",
  "pubdate": "2026-09-07T02:17:18.673Z",
  "executiveSummary": "A security vulnerability categorized as improper input validation has been identified within the Modem subsystem.\nThis flaw enables a local denial of service (DoS) condition, resulting in a system crash.\nThe vulnerability is restricted to environments where the attacker possesses User-level execution privileges.\nSuccessful exploitation requires explicit user interaction to trigger the underlying code path.\nThe scope of impact is confined to the local device, as the modem process terminates unexpectedly when processing malformed input.\nRisk assessment indicates a moderate severity, primarily due to the requirement for local access and specific user interaction, though it remains a significant stability concern for system availability.\nAffected identifiers include Patch ID: MOLY01810811 and Issue ID: MSV-9232.",
  "technicalDetails": "The vulnerability resides within the input processing logic of the Modem subsystem. The root cause is a failure to adequately sanitize or validate input data before it is processed by internal functions. When the system receives malformed or unexpected data through the modem interface, the lack of rigorous input validation leads to a memory corruption or an unhandled exception state.\nThe attack flow requires an attacker with local User execution privileges to facilitate the delivery of malicious input to the modem interface. Because the vulnerability requires user interaction, the attacker must convince the user to perform an action that triggers the processing of the specifically crafted payload within the modem driver or service. Once the input is consumed, the modem service fails to properly bounds-check the data, leading to an illegal memory access or an invalid state transition that forces a kernel panic or a fatal service termination.\nDuring the exploitation process, the modem process attempts to parse the payload. If the payload deviates from expected protocol standards or buffer size constraints, the underlying logic encounters an unexpected pointer dereference or an integer overflow, which directly triggers a system crash. This effectively disrupts all telecommunications and modem-dependent features until the system or affected service is restarted.\nThe impact is specifically a local denial of service. The modem component is highly sensitive to input validation errors, as it operates at a low level within the software stack. By exploiting this flaw, an attacker effectively renders the device's modem unavailable, which can interrupt network connectivity and other dependent system functions. Post-exploitation, the device will remain in a crash-loop or service-off state, causing persistent disruption until corrective action is taken."
}