Description

Use after free in Desktop Window Manager allows an authorized attacker to elevate privileges locally.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.0",
  "pubDate": "2026-08-11T17:18:58.603Z",
  "pubdate": "2026-08-11T17:18:58.603Z",
  "executiveSummary": "A use-after-free vulnerability resides in the Desktop Window Manager, enabling an authorized local attacker to achieve privilege escalation.\nThe flaw affects the Desktop Window Manager component, allowing malicious actors to manipulate freed memory structures and potentially execute arbitrary code in a privileged context.\nSuccessful exploitation compromises system integrity and confidentiality, allowing unauthorized elevation of privileges from a standard user context to higher privilege levels.\nThe threat actor must possess local execution capabilities and authorization to interact with the system, making this a significant post-compromise risk vector.\nMitigation requires applying vendor-supplied security updates for the affected Desktop Window Manager component as soon as they become available.",
  "technicalDetails": "The vulnerability is classified as a use-after-free memory corruption flaw within the Desktop Window Manager.\nA use-after-free condition occurs when the application continues to use a pointer after the memory chunk it references has been deallocated or freed.\nThe vulnerable component fails to properly nullify or manage object references after deallocation, leaving a dangling pointer susceptible to manipulation.\nAn authorized local attacker can exploit this weakness by strategically manipulating heap allocations and inducing a race condition or specific execution sequence that triggers the reuse of the dangling pointer.\nWhen the Desktop Window Manager attempts to access the reallocated memory structure, the program processes attacker-controlled data as legitimate internal objects or function pointers.\nThis improper handling of memory references leads to arbitrary code execution within the security context of the affected Desktop Window Manager service.\nPrerequisites for this attack include local interactive access to the target system and valid user authorization.\nThe network exposure is strictly local, precluding remote exploitation vectors without prior local access.\nPost-exploitation impact includes local privilege escalation, allowing the attacker to execute administrative actions, bypass security controls, and compromise the underlying operating system environment."
}