CWE-1334: Unauthorized Error Injection Can Degrade Hardware Redundancy
An unauthorized agent can inject errors into a redundant block to deprive the system of redundancy or put the system in a degraded operating mode.
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Overview
To ensure the performance and functional reliability of certain components, hardware designers can implement hardware blocks for redundancy in the case that others fail. This redundant block can be prevented from performing as intended if the design allows unauthorized agents to inject errors into it. In this way, a path with injected errors may become unavailable to serve as a redundant channel. This may put the system into a degraded mode of operation which could be exploited by a subsequent attack.
Real-world CVEs
2 recorded CVEs are caused by CWE-1334 (Unauthorized Error Injection Can Degrade Hardware Redundancy). The highest-severity and most recent are shown first. 1 new CWE-1334 CVE has been recorded so far in 2026.
Common consequences
What can happen when CWE-1334 is exploited.
DoS: Crash, Exit, or Restart, DoS: Instability, Quality Degradation, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other), Reduce Performance, Reduce Reliability, Unexpected State