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Area of Science:

  • Computer Science
  • Software Engineering
  • Cybersecurity

Background:

  • The Common Weakness Enumeration (CWE) is a community-developed list of common software security weaknesses.
  • CWE provides an aggregate metric to identify the 'Most Dangerous Software Errors'.
  • The current metric disproportionately weights frequency over exploitability and impact.

Purpose of the Study:

  • To introduce a novel metric for ranking software weaknesses.
  • To mitigate the bias in the existing CWE metric.
  • To identify and discuss the most significant software weaknesses over the last decade.

Main Methods:

  • Developed a new equation to calculate software weakness severity.
  • Incorporated exploitability and impact alongside frequency.
  • Analyzed CWE data over a ten-year period.

Main Results:

  • The proposed metric reduces bias towards frequency.
  • Identified key software weaknesses with high exploitability and impact.
  • Highlighted shifts in the landscape of dangerous software errors.

Conclusions:

  • A revised metric provides a more accurate assessment of software weakness danger.
  • Prioritizing exploitability and impact is crucial for effective vulnerability management.
  • Continuous evaluation of software weaknesses is essential for cybersecurity.