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Missing Synchronization

CVE-2025-47154

High
9/10

Summary

LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."

  • HIGH
  • NETWORK
  • HIGH
  • CHANGED
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-820 - Missing Synchronization

The software utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.

References

Advisory Timeline

  • Published