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Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVE-2025-21445

High
7.8/10

Summary

Memory corruption while copying the result to the transmission queue which is shared between the virtual machine and the host.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The program copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References

Advisory Timeline

  • Published