Is CVE-2015-7713 in the CISA KEV catalog?

No. CVE-2015-7713 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-7713?

CVE-2015-7713 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2015-7713?

CVE-2015-7713 has an EPSS score of 3.67% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-7713?

Upgrade nova on debian 11 to 1:12.0.0-2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2015-7713

MEDIUMEPSS 88th pctl

5.0

CVSS v2

NVD

Description

OpenStack Compute (Nova) before 2014.2.4 (juno) and 2015.1.x before 2015.1.2 (kilo) do not properly apply security group changes, which allows remote attackers to bypass intended restriction by leveraging an instance that was running when the change was made.

CWE-254

How to fix

Remediation Available

novaDebian

Fixed in:1:12.0.0-2CVE-2015-7713

novaUbuntu

Fixed in:1:2014.1.5-0ubuntu1.7USN-3449-1

python-novaUbuntu

Fixed in:1:2014.1.5-0ubuntu1.7USN-3449-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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

3.67%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Vendor Advisory1

security.openstack.org

Third-Party Advisory5

Related Vulnerabilities

Other CWE-254 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2016-0161	Medium	6.5	69%	-	-
CVE-2016-2296	Critical	9.4	64%	-	-
CVE-2015-1793	Medium	6.5	62%	-	Fix
CVE-2016-2118	High	7.5	37%	-	Fix
CVE-2016-3238	High	8.1	35%	-	-
CVE-2016-3198	Medium	6.5	32%	-	-

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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.