How severe is CVE-2021-41613?

CVE-2021-41613 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-41613 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-41613?

CVE-2021-41613 affects Openrisc Mor1kx Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-41613?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-41613 published?

CVE-2021-41613 was published on 2023-04-18 and last updated on 2026-06-17.

CVE-2021-41613

CVE-2021-41613 is a medium-severity vulnerability in Openrisc Mor1kx Firmware with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openrisc Mor1kx Firmware
Published: 2023-04-18
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2021-41613?: 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 severe is CVE-2021-41613?: CVE-2021-41613 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-41613 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-41613?: CVE-2021-41613 affects Openrisc Mor1kx Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-41613?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-41613 published?: CVE-2021-41613 was published on 2023-04-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:openrisc:mor1kx_firmware:*:*:*:*:*:*:*:*

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