How severe is CVE-2016-6636?

CVE-2016-6636 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2016-6636 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-6636?

CVE-2016-6636 primarily affects Cloudfoundry Cloud Foundry Uaa Bosh. In total, 97 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-6636?

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

When was CVE-2016-6636 published?

CVE-2016-6636 was published on 2016-09-30 and last updated on 2026-06-17.

CVE-2016-6636

CVE-2016-6636 is a medium-severity vulnerability in Cloudfoundry Cloud Foundry Uaa Bosh with a CVSS 3.x base score of 5.3. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 5.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-601
Affected product: Cloudfoundry Cloud Foundry Uaa Bosh
Published: 2016-09-30
Last modified: 2026-06-17

Description

The OAuth authorization implementation in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x before 3.4.4; UAA BOSH before 11.5 and 12.x before 12.5; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.1; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 mishandles redirect_uri subdomains, which allows remote attackers to obtain implicit access tokens via a modified subdomain.

Frequently asked questions

What is CVE-2016-6636?: The OAuth authorization implementation in Pivotal Cloud Foundry (PCF) before 242; UAA 2.x before 2.7.4.7, 3.x before 3.3.0.5, and 3.4.x before 3.4.4; UAA BOSH before 11.5 and 12.x before 12.5; Elastic Runtime before 1.6.40, 1.7.x before 1.7.21, and 1.8.x before 1.8.1; and Ops Manager 1.7.x before 1.7.13 and 1.8.x before 1.8.1 mishandles redirect_uri subdomains, which allows remote attackers to obtain implicit access tokens via a modified subdomain.
How severe is CVE-2016-6636?: CVE-2016-6636 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2016-6636 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-6636?: CVE-2016-6636 primarily affects Cloudfoundry Cloud Foundry Uaa Bosh. In total, 97 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-6636?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-6636 published?: CVE-2016-6636 was published on 2016-09-30 and last updated on 2026-06-17.

References

Affected products (97)

cpe:2.3:a:cloudfoundry:cloud_foundry_uaa_bosh:*:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry:*:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.3:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.4:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.5:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.6:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.7:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.8:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.9:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.10:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.11:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.12:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.13:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.14:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.15:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.17:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.18:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.19:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.20:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.21:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.22:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.23:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.25:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.26:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.27:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.28:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.29:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.30:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.31:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.32:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.33:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.34:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.35:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.36:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.37:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.38:*:*:*:*:*:*:*
cpe:2.3:a:pivotal_software:cloud_foundry_elastic_runtime:1.6.39:*:*:*:*:*:*:*

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