How severe is CVE-2021-38378?

CVE-2021-38378 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 low, integrity none, and availability none.

Is CVE-2021-38378 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-38378?

CVE-2021-38378 affects Open-xchange Ox App Suite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-38378?

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

When was CVE-2021-38378 published?

CVE-2021-38378 was published on 2021-11-22 and last updated on 2026-06-17.

CVE-2021-38378

CVE-2021-38378 is a medium-severity vulnerability in Open-xchange Ox App Suite 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.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Open-xchange Ox App Suite
Published: 2021-11-22
Last modified: 2026-06-17

Description

OX App Suite 7.10.5 allows Information Exposure because a caching mechanism can caused a Modified By response to show a person's name.

Frequently asked questions

What is CVE-2021-38378?: OX App Suite 7.10.5 allows Information Exposure because a caching mechanism can caused a Modified By response to show a person's name.
How severe is CVE-2021-38378?: CVE-2021-38378 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 low, integrity none, and availability none.
Is CVE-2021-38378 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-38378?: CVE-2021-38378 affects Open-xchange Ox App Suite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-38378?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-38378 published?: CVE-2021-38378 was published on 2021-11-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:open-xchange:ox_app_suite:*:*:*:*:*:*:*:*

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