Is CVE-2014-5251 in the CISA KEV catalog?

No. CVE-2014-5251 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-5251?

CVE-2014-5251 has a CVSS v2 base score of 4.9 (MEDIUM).

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

CVE-2014-5251 has an EPSS score of 1.59% (73th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-5251?

Upgrade keystone on debian 11 to 2014.1.2.1-1 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-5251

MEDIUMEPSS 73th pctl

4.9

CVSS v2

NVD

Description

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.

CWE-255

How to fix

Remediation Available

keystoneDebian

Fixed in:2014.1.2.1-1CVE-2014-5251

keystoneUbuntu

Fixed in:1:2014.1.2.1-0ubuntu1.1USN-2324-1

python-keystoneUbuntu

Fixed in:1:2014.1.2.1-0ubuntu1.1USN-2324-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.59%probability of exploitation in 30 days

73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Other references5

Related Vulnerabilities

Other CWE-255 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2010-0219	High	10.0	90%	-	-
CVE-2013-4786	High	7.5	82%	-	-
CVE-2014-9195	High	10.0	81%	-	-
CVE-2009-3548	High	7.5	79%	-	-
CVE-2009-4189	High	10.0	79%	-	-
CVE-2017-8229	Critical	9.8	74%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.