CVE-2025-63094

State: Published
Severity: 7.5 High
Published: Dec 10, 2025
Updated: Dec 18, 2025
Reserved: Oct 27, 2025

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-203 Observable Discrepancy

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/necst/aca25-xiangshan-spectre/blob/main/README.md
https://github.com/necst/aca25-xiangshan-spectre

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