CVE-2021-41612

8.8 highEPSS 1.1%

High (8.8) in openrisc mor1kx firmware. EPSS 1.1% chance of exploitation in the next 30 days.

An issue was discovered in the ALU unit of the OpenRISC mor1kx processor. The carry flag is not being updated correctly for the subtract instruction, which results in an incorrect value of the carry flag. Any software that relies on this flag may experience corruption in execution.

Severity

CVSS 3.1

8.8 high

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-31)
Published: 2023-04-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

openrisc:mor1kx_firmware

References

https://github.com/openrisc/mor1kx/issues/139
https://seth.engr.tamu.edu/software-releases/thehuzz/
https://github.com/openrisc/mor1kx/issues/139
https://seth.engr.tamu.edu/software-releases/thehuzz/

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