{"id":"CVE-2021-41614","aliases":["EUVD-2021-28628","GHSA-c5gr-hg39-gr5m"],"status":"published","title":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write...","description":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write access permissions to the Exception Program Counter Register (EPCR) are not implemented correctly. User programs from an unauthorized privilege level can make read/write accesses to EPCR.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00162,"percentile":0.05463,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-276"],"published":"2023-04-18T00:00:00Z","modified":"2026-06-17T04:08:43Z","products":[{"vendor":"openrisc","product":"mor1kx_firmware"}],"references":[{"url":"https://github.com/openrisc/mor1kx/issues/140","tags":["x_transferred","Issue Tracking"]},{"url":"https://seth.engr.tamu.edu/software-releases/thehuzz/","tags":["x_transferred","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-41614"},{"url":"https://seth.engr.tamu.edu/software-releases/thehuzz"},{"url":"https://github.com/advisories/GHSA-c5gr-hg39-gr5m"}],"sources":{"cve":[{"id":"CVE-2021-41614","description":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write access permissions to the Exception Program Counter Register (EPCR) are not implemented correctly. User programs from an unauthorized privilege level can make read/write accesses to EPCR.","status":"published","published":"2023-04-18T00:00:00Z","modified":"2025-02-06T15:00:47.456Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:32:59.105382Z"}],"euvd":[{"id":"EUVD-2021-28628","description":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write access permissions to the Exception Program Counter Register (EPCR) are not implemented correctly. User programs from an unauthorized privilege level can make read/write accesses to EPCR.","status":"published","published":"2023-04-18T00:00:00Z","modified":"2025-02-06T15:00:47Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:03.312509Z"}],"ghsa":[{"id":"GHSA-c5gr-hg39-gr5m","title":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write...","description":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write access permissions to the Exception Program Counter Register (EPCR) are not implemented correctly. User programs from an unauthorized privilege level can make read/write accesses to EPCR.","status":"published","published":"2023-04-18T12:30:16Z","modified":"2025-02-06T15:32:51Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:59:48.779987Z"}],"nvd":[{"id":"CVE-2021-41614","description":"An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The read/write access permissions to the Exception Program Counter Register (EPCR) are not implemented correctly. User programs from an unauthorized privilege level can make read/write accesses to EPCR.","status":"published","published":"2023-04-18T12:15:07.43Z","modified":"2026-06-17T04:08:43.787Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}