CVE-2021-41613

Name: CVE-2021-41613
Creator: NVD / NIST
Published: 2023-04-18T12:15:07.393+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.41%

Last modified Jun 17, 2026

CVE-2021-41613 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The write logic of Exception Effective Address Register (EEAR) is not implemented correctly. EPSS estimates a 0.41% chance of exploitation in the next 30 days.

Description

An issue was discovered in the controller unit of the OpenRISC mor1kx processor. The write logic of Exception Effective Address Register (EEAR) is not implemented correctly. User programs from authorized privilege levels will be unable to write to EEAR.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.41%

32.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openrisc	Mor1kx Firmware	< 5.1

References

https://github.com/openrisc/mor1kx/issues/141Vendor Advisory
https://seth.engr.tamu.edu/software-releases/thehuzz/Third Party Advisory
https://github.com/openrisc/mor1kx/issues/141Vendor Advisory
https://seth.engr.tamu.edu/software-releases/thehuzz/Third Party Advisory

Timeline

Published: Apr 18, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41613?

How severe is CVE-2021-41613?

CVE-2021-41613 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.41% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41613?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41613?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST