{"id":"CVE-2025-51677","title":"An issue was discovered in openRISC OR1200 commit 83ac6b","summary":"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":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","cwe":["CWE-116"],"published":"2026-07-17","updated":"2026-10-13","sourceUpdated":"2026-10-13T09:10:00.323","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-51677","references":[{"url":"https://github.com/openrisc/mor1kx/issues/160#issuecomment-2585618940","label":"cve@mitre.org"},{"url":"https://mason.gmu.edu/~rsaravan/projects/synfuzz/cve/cve.html","label":"cve@mitre.org"},{"url":"https://www.arxiv.org/abs/2504.18812","label":"cve@mitre.org"}],"tags":["nvd"],"epss":0.00626,"epssPercentile":0.48527,"ingestedAt":"2026-10-13T09:20:23.174Z","slug":"CVE-2025-51677","body":"## Overview\n\nAn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}