How severe is CVE-2016-6657?

CVE-2016-6657 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-6657 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6657?

CVE-2016-6657 primarily affects Pivotal Software Cloud Foundry Ops Manager. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6657?

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

When was CVE-2016-6657 published?

CVE-2016-6657 was published on 2016-12-16 and last updated on 2026-06-17.

CVE-2016-6657

CVE-2016-6657 is a high-severity vulnerability in Pivotal Software Cloud Foundry Ops Manager with a CVSS 3.x base score of 7.4. 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-601.

Key facts

Severity: High (CVSS 3.x base score 7.4)
CVSS v2: 5.8
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Pivotal Software Cloud Foundry Ops Manager
Published: 2016-12-16
Last modified: 2026-06-17

Description

An open redirect vulnerability has been detected with some Pivotal Cloud Foundry Elastic Runtime components. Users of affected versions should apply the following mitigation: Upgrade PCF Elastic Runtime 1.8.x versions to 1.8.12 or later. Upgrade PCF Ops Manager 1.7.x versions to 1.7.18 or later and 1.8.x versions to 1.8.10 or later.

Frequently asked questions

What is CVE-2016-6657?: An open redirect vulnerability has been detected with some Pivotal Cloud Foundry Elastic Runtime components. Users of affected versions should apply the following mitigation: Upgrade PCF Elastic Runtime 1.8.x versions to 1.8.12 or later. Upgrade PCF Ops Manager 1.7.x versions to 1.7.18 or later and 1.8.x versions to 1.8.10 or later.
How severe is CVE-2016-6657?: CVE-2016-6657 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-6657 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6657?: CVE-2016-6657 primarily affects Pivotal Software Cloud Foundry Ops Manager. In total, 43 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6657?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2016-6657 published?: CVE-2016-6657 was published on 2016-12-16 and last updated on 2026-06-17.

References

Affected products (43)

cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.3:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.4:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.5:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.6:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.7:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.8:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.9:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.10:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.11:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.12:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.13:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.14:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.15:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.16:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.17:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.7.18:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.5:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.6:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.8:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.9:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_ops_manager:1.8.10:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.1:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.2:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.3:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.4:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.5:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.6:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.7:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.8:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.8.9:*:*:*:*:*:*:*

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