How severe is CVE-2025-63094?

CVE-2025-63094 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-63094 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63094?

CVE-2025-63094 primarily affects Xiangshan. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-63094?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-63094 have an EU (EUVD) identifier?

Yes. CVE-2025-63094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202587.

When was CVE-2025-63094 published?

CVE-2025-63094 was published on 2025-12-10 and last updated on 2026-06-17.

CVE-2025-63094

CVE-2025-63094 is a high-severity vulnerability in Xiangshan with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-202587
Weakness: CWE-200
Affected product: Xiangshan
Published: 2025-12-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2025-63094?: 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.
How severe is CVE-2025-63094?: CVE-2025-63094 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-63094 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63094?: CVE-2025-63094 primarily affects Xiangshan. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-63094?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-63094 have an EU (EUVD) identifier?: Yes. CVE-2025-63094 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-202587.
When was CVE-2025-63094 published?: CVE-2025-63094 was published on 2025-12-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:xiangshan:xiangshan:2.0:*:*:*:*:*:*:*
cpe:2.3:a:xiangshan:xiangshan:3.0:*:*:*:*:*:*:*

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