This weakness occurs when software uses inefficient algorithms or suboptimal CPU operations, performing unnecessary or overly complex calculations that waste processing power and slow down performance.
Inefficient CPU computation directly impacts user experience by causing sluggish response times, high resource consumption, and reduced battery life on mobile devices. Developers should profile their code to identify bottlenecks, replace inefficient algorithms (like naive nested loops) with optimized alternatives, and leverage built-in hardware capabilities for common tasks. While often a performance issue, this can become a security vulnerability if an attacker can manipulate inputs to trigger worst-case algorithmic complexity, leading to resource exhaustion (e.g., a denial-of-service attack). To mitigate this, validate and sanitize inputs that affect computational loops, implement complexity limits for operations, and choose data structures and algorithms with predictable, efficient performance characteristics for your expected data volumes.
Impact: DoS: Resource Consumption (CPU)
Impact: Reduce Performance