Description

In apu, there is a possible memory corruption due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11249016; Issue ID: MSV-9169.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.4",
  "pubDate": "2026-10-05T02:16:51.907Z",
  "pubdate": "2026-10-05T02:16:51.907Z",
  "executiveSummary": "A critical memory corruption vulnerability identified as a use-after-free (UAF) exists within the apu component. This flaw poses a significant risk to system integrity and confidentiality by allowing local privilege escalation.\nThe vulnerability allows an unprivileged local attacker to execute arbitrary code or manipulate system memory, effectively escalating their privileges to that of the context in which the apu component operates.\nExploitation does not require user interaction, making it a highly dangerous vector for local attacks. The security impact is severe, as successful exploitation can bypass standard access controls and result in full system compromise.\nThe issue is tracked under Issue ID: MSV-9169, with a specific remediation provided via Patch ID: ALPS11249016. Organizations are advised to prioritize the application of this patch to mitigate potential local escalation threats.",
  "technicalDetails": "The vulnerability originates from a use-after-free (UAF) condition within the memory management logic of the apu component. A use-after-free occurs when an application continues to use a memory pointer after the associated memory has been deallocated or freed, leading to undefined behavior, including memory corruption, crashes, or arbitrary code execution.\nIn the context of the apu component, the root cause involves improper reference counting or premature release of heap-allocated resources. When the system attempts to access an object that has already been deallocated, it interacts with memory that may have been repurposed by the system or another process.\nThe exploitation flow begins with the attacker triggering a specific sequence of operations within the apu component that forces the deallocation of an object. Following this, the attacker must attempt to influence the heap layout—often through heap spraying techniques—to place malicious data into the memory address formerly occupied by the original object. Once the freed pointer is reused, the apu component performs operations on the attacker-controlled memory, interpreting it as legitimate data or an object structure.\nBy crafting the payload within the reclaimed memory block, an attacker can overwrite function pointers, vtable entries, or object metadata. When the apu component invokes a method on the dangling pointer, the execution flow is redirected to an attacker-supplied address. Given the nature of the component, this often leads to the escalation of privileges as the attacker gains execution capabilities within a higher-privileged context.\nThe exploitation of this vulnerability does not require authentication or user interaction, as the attack can be executed by any local process capable of interacting with the apu interface. This reduces the barriers to exploitation significantly, as an attacker only needs the ability to execute code locally on the affected system to trigger the vulnerable code path.\nThe post-exploitation impact includes the potential for persistent system compromise, bypass of kernel-level or service-level security policies, and the ability to access restricted resources that are otherwise protected from standard users. The complexity of UAF exploits requires precise heap grooming to ensure the stable replacement of the target object, but once achieved, the deterministic nature of memory allocation makes the vulnerability highly reliable for an attacker."
}