How severe is CVE-2021-46364?

CVE-2021-46364 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-46364 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46364?

CVE-2021-46364 affects Magnolia-cms Magnolia Cms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-46364?

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.

When was CVE-2021-46364 published?

CVE-2021-46364 was published on 2022-02-11 and last updated on 2026-06-17.

CVE-2021-46364

CVE-2021-46364 is a high-severity vulnerability in Magnolia-cms Magnolia Cms with a CVSS 3.x base score of 7.8. 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: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (72nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-502
Affected product: Magnolia-cms Magnolia Cms
Published: 2022-02-11
Last modified: 2026-06-17

Description

A vulnerability in the Snake YAML parser of Magnolia CMS v6.2.3 and below allows attackers to execute arbitrary code via a crafted YAML file.

Frequently asked questions

What is CVE-2021-46364?: A vulnerability in the Snake YAML parser of Magnolia CMS v6.2.3 and below allows attackers to execute arbitrary code via a crafted YAML file.
How severe is CVE-2021-46364?: CVE-2021-46364 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-46364 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (72nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46364?: CVE-2021-46364 affects Magnolia-cms Magnolia Cms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-46364?: 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.
When was CVE-2021-46364 published?: CVE-2021-46364 was published on 2022-02-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:magnolia-cms:magnolia_cms:*:*:*:*:*:*:*:*

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