CVE-2025-63094 Information disclosure in n/a

High 7.5 Published Updated

Attackers can access sensitive information via side-channel analysis of the data cache in XiangShan processors due to speculative execution and indirect branch prediction.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-63094?

CVE-2025-63094 is a high-severity vulnerability in n/a, published on 10 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-203, CWE-200

Which versions are affected by CVE-2025-63094?

It affects 1 product.

Products include Xiangshan Xiangshan.

How do I fix CVE-2025-63094?

No fix has been published for CVE-2025-63094 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-63094 being exploited?

There is no known exploitation of CVE-2025-63094 in the wild and no public exploit code.

Sources

Also known as GHSA-mc7g-hphg-2wrh.

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