How severe is CVE-2016-2121?

CVE-2016-2121 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2016-2121 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2016-2121?

CVE-2016-2121 affects Redhat Openstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2016-2121?

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

When was CVE-2016-2121 published?

CVE-2016-2121 was published on 2018-10-31 and last updated on 2026-06-17.

CVE-2016-2121

CVE-2016-2121 is a medium-severity vulnerability in Redhat Openstack with a CVSS 3.x base score of 4.0. 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-732.

Key facts

Severity: Medium (CVSS 3.x base score 4.0)
CVSS v2: 2.1
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Redhat Openstack
Published: 2018-10-31
Last modified: 2026-06-17

Description

A permissions flaw was found in redis, which sets weak permissions on certain files and directories that could potentially contain sensitive information. A local, unprivileged user could possibly use this flaw to access unauthorized system information.

Frequently asked questions

What is CVE-2016-2121?: A permissions flaw was found in redis, which sets weak permissions on certain files and directories that could potentially contain sensitive information. A local, unprivileged user could possibly use this flaw to access unauthorized system information.
How severe is CVE-2016-2121?: CVE-2016-2121 has a CVSS 3.x base score of 4.0, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2016-2121 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2016-2121?: CVE-2016-2121 affects Redhat Openstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2016-2121?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2016-2121 published?: CVE-2016-2121 was published on 2018-10-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*

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