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9.1
CVE-2025-51677: openRISC OR1200 CPU Unexpected Behavior
CVE-2025-51677 · published 2 months ago
Summary
A bug in the openRISC OR1200 CPU could cause unexpected behavior. This issue affects the CPU's output port and may lead to errors or instability. It's recommended to update to the latest version of the CPU's code to fix the issue.
Original advisory text
An issue was discovered in openRISC OR1200 commit 83ac6b. An output mismatch between the RTL and the netlist of the or1200 cpu output port can lead to unexpected behavior.
An issue was discovered in openRISC OR1200 commit 83ac6b. An output mismatch between the RTL and the netlist of the or1200 cpu output port can lead to unexpected behavior.
Severity
9.1
Critical
Exploitation
EPSS <1%
Type
CWE-116Improper Encoding or Escaping of Output
Timeline
Published17 Jul 2026
Updated27 Sep 2026
First seen17 Jul 2026
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