How severe is CVE-2016-4871?

CVE-2016-4871 has a CVSS 3.x base score of 6.5, 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 none, and availability high.

Is CVE-2016-4871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4871?

CVE-2016-4871 primarily affects Cybozu Office. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4871?

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

When was CVE-2016-4871 published?

CVE-2016-4871 was published on 2017-04-17 and last updated on 2026-06-17.

CVE-2016-4871

CVE-2016-4871 is a medium-severity vulnerability in Cybozu Office with a CVSS 3.x base score of 6.5. 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-399.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 6.8
EPSS exploit prediction: 2% (81st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Cybozu Office
Published: 2017-04-17
Last modified: 2026-06-17

Description

Cybozu Office 9.0.0 through 10.4.0 allows remote attackers to cause a denial of service.

Frequently asked questions

What is CVE-2016-4871?: Cybozu Office 9.0.0 through 10.4.0 allows remote attackers to cause a denial of service.
How severe is CVE-2016-4871?: CVE-2016-4871 has a CVSS 3.x base score of 6.5, 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 none, and availability high.
Is CVE-2016-4871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (81st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4871?: CVE-2016-4871 primarily affects Cybozu Office. In total, 16 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4871 published?: CVE-2016-4871 was published on 2017-04-17 and last updated on 2026-06-17.

References

Affected products (16)

cpe:2.3:a:cybozu:office:9.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.2.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.3.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.3.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:9.9.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.3.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:office:10.4.0:*:*:*:*:*:*:*

More vulnerabilities in Cybozu Office

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CVE-2015-8483 — High (CVSS 7.4): Open redirect vulnerability in Cybozu Office 10.2.0 through 10.3.0 allows remote attackers to redirect users to…
CVE-2024-39817 — Medium (CVSS 6.5): Insertion of sensitive information into sent data issue exists in Cybozu Office 10.0.0 to 10.8.6, which may allow a…

All CVEs affecting Cybozu Office →

Other CWE-399 (Resource Management Errors) vulnerabilities

CVE-2015-8104 — Critical (CVSS 10.0): The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows guest OS users to cause a…
CVE-2015-0339 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0335 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2015-0333 — Critical (CVSS 10.0): Adobe Flash Player before 13.0.0.277 and 14.x through 17.x before 17.0.0.134 on Windows and OS X and before…
CVE-2014-4121 — Critical (CVSS 10.0): Microsoft .NET Framework 2.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2 does not properly parse internationalized…
CVE-2014-0560 — Critical (CVSS 10.0): Use-after-free vulnerability in Adobe Reader and Acrobat 10.x before 10.1.12 and 11.x before 11.0.09 on Windows and OS…

Browse all CWE-399 (Resource Management Errors) vulnerabilities →