How severe is CVE-2016-9579?

CVE-2016-9579 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-2016-9579 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-9579?

CVE-2016-9579 primarily affects Redhat Ceph Storage. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-9579?

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

When was CVE-2016-9579 published?

CVE-2016-9579 was published on 2018-08-01 and last updated on 2026-06-17.

CVE-2016-9579

CVE-2016-9579 is a medium-severity vulnerability in Redhat Ceph Storage 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (90th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Redhat Ceph Storage
Published: 2018-08-01
Last modified: 2026-06-17

Description

A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.

Frequently asked questions

What is CVE-2016-9579?: A flaw was found in the way Ceph Object Gateway would process cross-origin HTTP requests if the CORS policy was set to allow origin on a bucket. A remote unauthenticated attacker could use this flaw to cause denial of service by sending a specially-crafted cross-origin HTTP request. Ceph branches 1.3.x and 2.x are affected.
How severe is CVE-2016-9579?: CVE-2016-9579 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-2016-9579 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (90th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-9579?: CVE-2016-9579 primarily affects Redhat Ceph Storage. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-9579?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-9579 published?: CVE-2016-9579 was published on 2018-08-01 and last updated on 2026-06-17.

References

Affected products (9)

cpe:2.3:a:redhat:ceph_storage:1.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_mon:1.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_mon:2:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_osd:1.3:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage_osd:2:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*

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