CVE-2023-50559

Name: CVE-2023-50559
Creator: NVD / NIST
Published: 2023-12-30T00:15:19.537+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.19%

Last modified Jun 17, 2026

CVE-2023-50559 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in XiangShan v2.1, allows local attackers to obtain sensitive information via the L1D cache.. EPSS estimates a 0.19% chance of exploitation in the next 30 days.

Description

An issue was discovered in XiangShan v2.1, allows local attackers to obtain sensitive information via the L1D cache.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.19%

8.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openxiangshan	Xiangshan	2.1

References

https://gist.github.com/nieeka/5edb552e7cf62cdb18decd9c4292d429Third Party Advisory
https://github.com/OpenXiangShan/XiangShan/issues/2534Issue Tracking
https://gist.github.com/nieeka/5edb552e7cf62cdb18decd9c4292d429Third Party Advisory
https://github.com/OpenXiangShan/XiangShan/issues/2534Issue Tracking

Timeline

Published: Dec 30, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-50559?

An issue was discovered in XiangShan v2.1, allows local attackers to obtain sensitive information via the L1D cache.

How severe is CVE-2023-50559?

CVE-2023-50559 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.19% probability of exploitation in the next 30 days.

How do I fix CVE-2023-50559?

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-2023-50559?

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

Scan your code now

Source: NVD / NIST