CVE-2021-41613

MEDIUM
4.3
CVSS Score
Published: April 18, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 04:08 AM UTC
2 products affected across 1 vendorMOR1KX FirmwareMor1Kx

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 5.1
Affected range stops below 5.1, so it looks safe — our inference, not a vendor statement
openrisc-mor1kx (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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