Description

In multiple places, there is a possible denial of service due to an uncaught exception. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.8",
  "pubDate": "2026-10-05T19:17:25.073Z",
  "pubdate": "2026-10-05T19:17:25.073Z",
  "executiveSummary": "A critical vulnerability exists where multiple code paths fail to handle exceptions properly, leading to an application-level denial of service (DoS).\nThis flaw resides within the error handling logic of the affected system, where uncaught exceptions cause immediate process termination.\nThe vulnerability does not require user interaction or pre-existing high-level privileges, as it is exploitable locally by unprivileged actors.\nThe primary security impact involves service disruption; however, the unexpected termination of a process running with elevated permissions may result in local privilege escalation, depending on how the system manages state recovery or transient data during crashes.\nThe vulnerability allows an attacker to repeatedly crash the service, potentially leading to system instability or bypass of security controls dependent on the availability of the vulnerable service.",
  "technicalDetails": "The root cause of this vulnerability is the absence of comprehensive exception handling routines (e.g., try-catch blocks) in critical functional areas of the codebase. When the application encounters unexpected input or an error condition, the runtime environment throws an exception that remains unhandled at the specific scope.\nThe lack of a centralized exception handler causes the stack to unwind to the process entry point, triggering an abrupt termination of the host process. Because the application fails to gracefully degrade or catch these exceptions, an attacker can intentionally supply malformed data or trigger specific state-based conditions to induce a crash.\nIn scenarios where the vulnerable component operates with elevated privileges, the abrupt exit may leave sensitive resources in an inconsistent state or facilitate race conditions during the restart cycle. This behavior creates a vector for local privilege escalation (LPE), as an attacker may leverage the predictable nature of the crashes to manipulate files, memory, or pipes created or modified by the service upon restoration.\nExploitation is achieved by identifying the specific API inputs or parameters that lead to the unhandled exception. Since no specialized execution privileges are required, any local user can interact with the vulnerable entry points. The attack flow involves: 1) Probing the application to identify parameters that trigger an unhandled runtime error. 2) Sending a crafted payload to the vulnerable endpoint that forces an uncaught exception. 3) Observing the service termination to confirm the DoS condition. 4) Leveraging the crash state or the subsequent service restart to escalate privileges by targeting temporary files or IPC mechanisms utilized by the service during its initialization phase.\nThis vulnerability is particularly dangerous in environments where automated service monitors restart crashed processes, as this allows an attacker to repeatedly trigger the flaw to monitor system recovery patterns or exploit race conditions in initialization scripts or binary loading sequences."
}