CVE-2025-63094
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-10

Last updated on: 2025-12-18

Assigner: MITRE

Description
XiangShan Nanhu V2 and XiangShan Kunmighu V3 were discovered to use speculative execution and indirect branch prediction, allowing attackers to access sensitive information via side-channel analysis of the data cache.
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Meta Information
Published
2025-12-10
Last Modified
2025-12-18
Generated
2026-06-16
AI Q&A
2025-12-10
EPSS Evaluated
2026-06-14
NVD
CVE-2025-63094
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
necst xiangshan 2
necst xiangshan 3
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-203 The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
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Executive Summary

This vulnerability exists in XiangShan Nanhu V2 and XiangShan Kunmighu V3 processors, which use speculative execution and indirect branch prediction. These features allow attackers to perform side-channel analysis on the data cache, potentially accessing sensitive information.

Impact Analysis

The vulnerability can allow attackers to access sensitive information by exploiting side-channel analysis of the data cache, potentially leading to unauthorized disclosure of confidential data.

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