Is CVE-2021-41613 in the CISA KEV catalog?

No. CVE-2021-41613 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-41613?

CVE-2021-41613 has a CVSS v3 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2021-41613?

CVE-2021-41613 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-41613?

Upgrade mor1kx firmware to 5.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-41613

MEDIUM

4.3

CVSS v3

NVD

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.

How to fix

Remediation Available

mor1kx firmwareNVD

Affected:< 5.1Fixed in:5.1CVE-2021-41613derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory1

github.com

Third-Party Advisory1

seth.engr.tamu.edu

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-03-05.