How severe is CVE-2019-6023?

CVE-2019-6023 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-2019-6023 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-2019-6023?

CVE-2019-6023 affects Cybozu Office. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6023?

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

When was CVE-2019-6023 published?

CVE-2019-6023 was published on 2019-12-26 and last updated on 2026-06-17.

CVE-2019-6023

CVE-2019-6023 is a medium-severity vulnerability in Cybozu Office 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% (60th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Cybozu Office
Published: 2019-12-26
Last modified: 2026-06-17

Description

Cybozu Office 10.0.0 to 10.8.3 allows remote authenticated attackers to bypass access restriction which may result in obtaining data without access privileges via the application 'Address'.

Frequently asked questions

What is CVE-2019-6023?: Cybozu Office 10.0.0 to 10.8.3 allows remote authenticated attackers to bypass access restriction which may result in obtaining data without access privileges via the application 'Address'.
How severe is CVE-2019-6023?: CVE-2019-6023 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-2019-6023 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-2019-6023?: CVE-2019-6023 affects Cybozu Office. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6023?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-6023 published?: CVE-2019-6023 was published on 2019-12-26 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:cybozu:office:*:*:*:*:*:*:*:*

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