How severe is CVE-2021-20754?

CVE-2021-20754 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2021-20754 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-20754?

CVE-2021-20754 affects Cybozu Garoon. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-20754?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-20754 published?

CVE-2021-20754 was published on 2021-08-18 and last updated on 2026-06-17.

CVE-2021-20754

CVE-2021-20754 is a medium-severity vulnerability in Cybozu Garoon with a CVSS 3.x base score of 4.3. 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Cybozu Garoon
Published: 2021-08-18
Last modified: 2026-06-17

Description

Improper input validation vulnerability in Workflow of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to alter the data of Workflow without the appropriate privilege.

Frequently asked questions

What is CVE-2021-20754?: Improper input validation vulnerability in Workflow of Cybozu Garoon 4.0.0 to 5.0.2 allows a remote authenticated attacker to alter the data of Workflow without the appropriate privilege.
How severe is CVE-2021-20754?: CVE-2021-20754 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2021-20754 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-20754?: CVE-2021-20754 affects Cybozu Garoon. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-20754?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-20754 published?: CVE-2021-20754 was published on 2021-08-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cybozu:garoon:*:*:*:*:*:*:*:*

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