How severe is CVE-2021-38241?

CVE-2021-38241 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-38241 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38241?

CVE-2021-38241 affects Ruoyi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38241?

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

When was CVE-2021-38241 published?

CVE-2021-38241 was published on 2022-12-16 and last updated on 2026-06-17.

CVE-2021-38241

CVE-2021-38241 is a critical-severity vulnerability in Ruoyi with a CVSS 3.x base score of 9.8. 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-502.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Ruoyi
Published: 2022-12-16
Last modified: 2026-06-17

Description

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

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 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-38241 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38241?: CVE-2021-38241 affects Ruoyi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38241?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-38241 published?: CVE-2021-38241 was published on 2022-12-16 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:ruoyi:ruoyi:*:*:*:*:*:*:*:*

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