Is CVE-2015-3646 in the CISA KEV catalog?

No. CVE-2015-3646 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-3646?

CVE-2015-3646 has a CVSS v2 base score of 4.0 (MEDIUM).

What is the EPSS score for CVE-2015-3646?

CVE-2015-3646 has an EPSS score of 2.88% (85th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-3646?

Upgrade keystone on debian 11 to 2015.1.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2015-3646

MEDIUMEPSS 85th pctl

4.0

CVSS v2

NVD

Description

OpenStack Identity (Keystone) before 2014.1.5 and 2014.2.x before 2014.2.4 logs the backend_argument configuration option content, which allows remote authenticated users to obtain passwords and other sensitive backend information by reading the Keystone logs.

CWE-200Information Exposure

How to fix

Remediation Available

keystoneDebian

Fixed in:2015.1.0-1CVE-2015-3646

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

2.88%probability of exploitation in 30 days

85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Patch1

lists.openstack.org

Third-Party Advisory3

Related Vulnerabilities

Other CWE-200 (Information Exposure) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-24919	High	8.6	100%	KEV + Ransom	-
CVE-2020-14181	Medium	5.3	100%	-	Fix
CVE-2021-34429	Medium	5.3	99%	-	Fix
CVE-2018-11409	Medium	5.3	98%	-	-
CVE-2021-41277	Critical	10.0	97%	KEV	-
CVE-2016-2183	High	7.5	96%	-	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.