Is CVE-2021-41612 actively exploited?

No active exploitation of CVE-2021-41612 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-41612 be exploited remotely?

Yes. CVE-2021-41612 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-41612?

CVE-2021-41612 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2021-41612

HIGH

CVE-2021-41612

NVD-CWE-noinfoPublished: April 18, 2023· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2021-41612 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.