CVE-2025-51677

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

17/07/2026

Last modified:

23/07/2026

Description

An issue was discovered in openRISC OR1200 commit 83ac6b. An output mismatch between the RTL and the netlist of the or1200 cpu output port can lead to unexpected behavior.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.10 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x

9.10

Severity 3.x

CRITICAL

References to Advisories, Solutions, and Tools

https://github.com/openrisc/mor1kx/issues/160#issuecomment-2585618940
https://mason.gmu.edu/~rsaravan/projects/synfuzz/cve/cve.html
https://www.arxiv.org/abs/2504.18812