Denial of Service in OpenSBI via SBI Function Handling

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: MITRE

Description

An issue was discovered in OpenSBI 1.3 allowing attackers to cause a denial of service via crafted request to the SBI function #2 or the 'Find and configure a matching counter' function of SBI PMU extension.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-27

Last Modified

2026-07-27

Generated

2026-07-28

AI Q&A

2026-07-28

EPSS Evaluated

N/A

NVD

CVE-2025-63913

EUVD

EUVD-2025-210523

Affected Vendors & Products

Vendor	Product	Version / Range
opensbi	opensbi	1.3

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability in OpenSBI 1.3 allows attackers to cause a denial of service by sending crafted requests to specific SBI functions, namely function #2 or the 'Find and configure a matching counter' function of the SBI PMU extension.

Impact Analysis

The vulnerability could lead to system crashes or unresponsiveness, disrupting normal operations of systems using OpenSBI 1.3. This may cause service interruptions or require system reboots to restore functionality.

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