How severe is CVE-2016-4909?

CVE-2016-4909 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2016-4909 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-4909?

CVE-2016-4909 primarily affects Cybozu Garoon. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-4909?

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

When was CVE-2016-4909 published?

CVE-2016-4909 was published on 2017-06-09 and last updated on 2026-06-17.

CVE-2016-4909

CVE-2016-4909 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Cybozu Garoon
Published: 2017-06-09
Last modified: 2026-06-17

Description

Cross-site request forgery (CSRF) vulnerability in Cybozu Garoon 3.0.0 to 4.2.2 allows remote attackers to hijack the authentication of a logged in user to force a logout via unspecified vectors.

Frequently asked questions

What is CVE-2016-4909?: Cross-site request forgery (CSRF) vulnerability in Cybozu Garoon 3.0.0 to 4.2.2 allows remote attackers to hijack the authentication of a logged in user to force a logout via unspecified vectors.
How severe is CVE-2016-4909?: CVE-2016-4909 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2016-4909 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-4909?: CVE-2016-4909 primarily affects Cybozu Garoon. In total, 27 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-4909?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-4909 published?: CVE-2016-4909 was published on 2017-06-09 and last updated on 2026-06-17.

References

Affected products (27)

cpe:2.3:a:cybozu:garoon:3.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.1.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.1.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.1.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.1.3:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.3:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.4:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.5.5:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.3:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.4:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:3.7.5:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.0.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.2.0:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.2.1:*:*:*:*:*:*:*
cpe:2.3:a:cybozu:garoon:4.2.2:*:*:*:*:*:*:*

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