How severe is CVE-2016-3687?

CVE-2016-3687 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2016-3687 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-3687?

CVE-2016-3687 primarily affects F5 Big-ip Access Policy Manager. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2016-3687?

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

When was CVE-2016-3687 published?

CVE-2016-3687 was published on 2016-06-16 and last updated on 2026-06-17.

CVE-2016-3687

CVE-2016-3687 is a medium-severity vulnerability in F5 Big-ip Access Policy Manager 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.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
CVSS v2: 4.0
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: F5 Big-ip Access Policy Manager
Published: 2016-06-16
Last modified: 2026-06-17

Description

Open redirect vulnerability in F5 BIG-IP APM 11.2.1, 11.4.x, 11.5.x, and 11.6.x before 11.6.0 HF6 and Edge Gateway 11.2.1, when using multi-domain single sign-on (SSO), allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a base64-encoded URL in the SSO_ORIG_URI parameter.

Frequently asked questions

What is CVE-2016-3687?: Open redirect vulnerability in F5 BIG-IP APM 11.2.1, 11.4.x, 11.5.x, and 11.6.x before 11.6.0 HF6 and Edge Gateway 11.2.1, when using multi-domain single sign-on (SSO), allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a base64-encoded URL in the SSO_ORIG_URI parameter.
How severe is CVE-2016-3687?: CVE-2016-3687 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2016-3687 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-3687?: CVE-2016-3687 primarily affects F5 Big-ip Access Policy Manager. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2016-3687?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-3687 published?: CVE-2016-3687 was published on 2016-06-16 and last updated on 2026-06-17.

References

Affected products (10)

cpe:2.3:a:f5:big-ip_access_policy_manager:11.2.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.4.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.1:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.2:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.3:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.5.4:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_access_policy_manager:11.6.0:*:*:*:*:*:*:*
cpe:2.3:a:f5:big-ip_edge_gateway:11.2.1:*:*:*:*:*:*:*

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