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CVE-2021-41612

HIGHCVSS 8.8/10EPSS 1.15%

Last modified

CVE-2021-41612 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 1.15% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
1.15%

62.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
OpenriscMor1kx Firmware< 5.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2021-41612?
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.
How severe is CVE-2021-41612?
CVE-2021-41612 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.15% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41612?
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-2021-41612?

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

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Source: NVD / NIST