How severe is CVE-2016-5409?

CVE-2016-5409 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2016-5409 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-5409?

CVE-2016-5409 affects Redhat Openshift. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-5409?

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-2016-5409 published?

CVE-2016-5409 was published on 2017-04-20 and last updated on 2026-06-17.

CVE-2016-5409

CVE-2016-5409 is a high-severity vulnerability in Redhat Openshift with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (67th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Redhat Openshift
Published: 2017-04-20
Last modified: 2026-06-17

Description

Red Hat OpenShift Enterprise 2 does not include the HTTPOnly flag in a Set-Cookie header for the GEARID cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to the cookies.

Frequently asked questions

What is CVE-2016-5409?: Red Hat OpenShift Enterprise 2 does not include the HTTPOnly flag in a Set-Cookie header for the GEARID cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to the cookies.
How severe is CVE-2016-5409?: CVE-2016-5409 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2016-5409 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-5409?: CVE-2016-5409 affects Redhat Openshift. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-5409?: 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-2016-5409 published?: CVE-2016-5409 was published on 2017-04-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:openshift:2.0:*:*:*:*:*:*:*

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