How severe is CVE-2015-7776?

CVE-2015-7776 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 low, integrity none, and availability none.

Is CVE-2015-7776 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7776?

CVE-2015-7776 primarily affects Cybozu Garoon. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-7776?

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

When was CVE-2015-7776 published?

CVE-2015-7776 was published on 2016-06-19 and last updated on 2026-06-17.

CVE-2015-7776

CVE-2015-7776 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-200.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
CVSS v2: 4.3
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Cybozu Garoon
Published: 2016-06-19
Last modified: 2026-06-17

Description

Cybozu Garoon 3.x and 4.x before 4.2.0 does not properly restrict loading of IMG elements, which makes it easier for remote attackers to track users via a crafted HTML e-mail message, a different vulnerability than CVE-2016-1196.

Frequently asked questions

What is CVE-2015-7776?: Cybozu Garoon 3.x and 4.x before 4.2.0 does not properly restrict loading of IMG elements, which makes it easier for remote attackers to track users via a crafted HTML e-mail message, a different vulnerability than CVE-2016-1196.
How severe is CVE-2015-7776?: CVE-2015-7776 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 low, integrity none, and availability none.
Is CVE-2015-7776 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7776?: CVE-2015-7776 primarily affects Cybozu Garoon. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-7776?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-7776 published?: CVE-2015-7776 was published on 2016-06-19 and last updated on 2026-06-17.

References

Affected products (24)

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:*:*:*:*:*:*:*

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