Is CVE-2014-5251 being actively exploited?

CVE-2014-5251 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2014-5251?

CVE-2014-5251 has a CVSS 2.0 base score of 4.9 (MEDIUM).

CVE-2014-5251

MEDIUM · CVSS 4.9EPSS 1.6%EU EUVD

The MySQL token driver in OpenStack Identity (Keystone) 2014.1.x before 2014.1.2.1 and Juno before Juno-3 stores timestamps with the incorrect precision, which causes the expiration comparison for tokens to fail and allows remote authenticated users to retain access via an expired token.

Key facts

CVSS score: 4.9 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:S/C:P/I:P/A:N
Weakness (CWE): CWE-255
EPSS score: 1.6% (76th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2014-0027)
Published: August 25, 2014
NVD last modified: June 17, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2014-0027 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
openstack / keystone
openstack / keystone
openstack / keystone
openstack / keystone

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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