CVE-2025-63094

Name: CVE-2025-63094
Creator: NVD / NIST
Published: 2025-12-10T18:16:20.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2025-63094 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.49%

38.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Xiangshan	Xiangshan	2.0
Xiangshan	Xiangshan	3.0

References

https://github.com/necst/aca25-xiangshan-spectreExploit, Third Party Advisory
https://github.com/necst/aca25-xiangshan-spectre/blob/main/README.mdExploit, Third Party Advisory

Timeline

Published: Dec 10, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-63094?

How severe is CVE-2025-63094?

CVE-2025-63094 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2025-63094?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-63094?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST