CVE-2021-38241

Name: CVE-2021-38241
Creator: NVD / NIST
Published: 2022-12-16T22:15:08.69+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 1.03%

Last modified Jun 17, 2026

CVE-2021-38241 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. Deserialization issue discovered in Ruoyi before 4.6.1 allows remote attackers to run arbitrary code via weak cipher in Shiro framework.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.

Description

Deserialization issue discovered in Ruoyi before 4.6.1 allows remote attackers to run arbitrary code via weak cipher in Shiro framework.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

1.03%

59.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Ruoyi	Ruoyi	< 4.6.1

References

https://www.du1ge.com/archives/CVE-2021-38241Third Party Advisory
https://www.du1ge.com/archives/CVE-2021-38241Third Party Advisory

Timeline

Published: Dec 16, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-38241?

Deserialization issue discovered in Ruoyi before 4.6.1 allows remote attackers to run arbitrary code via weak cipher in Shiro framework.

How severe is CVE-2021-38241?

CVE-2021-38241 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.

How do I fix CVE-2021-38241?

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-2021-38241?

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

Scan your code now

Source: NVD / NIST