How severe is CVE-2015-7699?

CVE-2015-7699 has a CVSS 2.0 base score of 9.0, rated critical severity.

Is CVE-2015-7699 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-7699?

CVE-2015-7699 primarily affects Owncloud Owncloud Server. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-7699?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-7699 published?

CVE-2015-7699 was published on 2015-10-26 and last updated on 2026-06-17.

CVE-2015-7699

CVE-2015-7699 is a critical-severity vulnerability in Owncloud Owncloud Server with a CVSS 2.0 base score of 9.0. 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-20.

Key facts

Severity: Critical (CVSS 2.0 base score 9.0)
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Owncloud Owncloud Server
Published: 2015-10-26
Last modified: 2026-06-17

Description

The files_external app in ownCloud Server before 7.0.9, 8.0.x before 8.0.7, and 8.1.x before 8.1.2 allows remote authenticated users to instantiate arbitrary classes and possibly execute arbitrary code via a crafted mount point option, related to "objectstore."

Frequently asked questions

What is CVE-2015-7699?: The files_external app in ownCloud Server before 7.0.9, 8.0.x before 8.0.7, and 8.1.x before 8.1.2 allows remote authenticated users to instantiate arbitrary classes and possibly execute arbitrary code via a crafted mount point option, related to "objectstore."
How severe is CVE-2015-7699?: CVE-2015-7699 has a CVSS 2.0 base score of 9.0, rated critical severity.
Is CVE-2015-7699 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-7699?: CVE-2015-7699 primarily affects Owncloud Owncloud Server. In total, 14 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-7699?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-7699 published?: CVE-2015-7699 was published on 2015-10-26 and last updated on 2026-06-17.

References

Affected products (14)

cpe:2.3:a:owncloud:owncloud_server:7.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.1:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.6:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:7.0.7:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.2:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.3:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.4:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.0.5:*:*:*:*:*:*:*
cpe:2.3:a:owncloud:owncloud_server:8.1.0:*:*:*:*:*:*:*

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