How severe is CVE-2016-4869?

CVE-2016-4869 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-4869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4869?

CVE-2016-4869 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-2016-4869?

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

When was CVE-2016-4869 published?

CVE-2016-4869 was published on 2017-04-17 and last updated on 2026-06-17.

CVE-2016-4869

CVE-2016-4869 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cybozu Office
Published: 2017-04-17
Last modified: 2026-06-17

Description

Cybozu Office 9.0.0 to 10.4.0 allow remote attackers to obtain session information via a page where CGI environment variables are displayed.

Frequently asked questions

What is CVE-2016-4869?: Cybozu Office 9.0.0 to 10.4.0 allow remote attackers to obtain session information via a page where CGI environment variables are displayed.
How severe is CVE-2016-4869?: CVE-2016-4869 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-4869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4869?: CVE-2016-4869 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-2016-4869?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4869 published?: CVE-2016-4869 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-2018-0703 — High (CVSS 7.5): Directory traversal vulnerability in Cybozu Office 10.0.0 to 10.8.1 allows remote attackers to delete arbitrary files…
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…
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