Is CVE-2014-3520 in the CISA KEV catalog?

No. CVE-2014-3520 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-3520?

CVE-2014-3520 has a CVSS v2 base score of 6.5 (MEDIUM).

What is the EPSS score for CVE-2014-3520?

CVE-2014-3520 has an EPSS score of 1.91% (77th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-3520?

Upgrade keystone on debian 11 to 2014.1.1-3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2014-3520

MEDIUMEPSS 77th pctl

6.5

CVSS v2

NVD

Description

OpenStack Identity (Keystone) before 2013.2.4, 2014.x before 2014.1.2, and Juno before Juno-2 allows remote authenticated trustees to gain access to an unauthorized project for which the trustor has certain roles via the project ID in a V2 API trust token request.

CWE-863Incorrect Authorization

How to fix

Remediation Available

keystoneDebian

Fixed in:2014.1.1-3CVE-2014-3520

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

1.91%probability of exploitation in 30 days

77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

Patch1

lists.openstack.org

Exploit1

bugs.launchpad.net

Third-Party Advisory1

secunia.com

Related Vulnerabilities

Other CWE-863 (Incorrect Authorization) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-22518	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-38035	Critical	9.8	100%	KEV + Ransom	-
CVE-2022-46169	Critical	9.8	100%	KEV	Fix
CVE-2025-29927	Critical	9.1	100%	-	Fix
CVE-2024-38856	Critical	9.8	99%	KEV	Fix
CVE-2020-36289	Medium	5.3	99%	-	Fix

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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.