Is CVE-2013-4463 in the CISA KEV catalog?

No. CVE-2013-4463 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2013-4463?

CVE-2013-4463 has a CVSS v2 base score of 2.1 (LOW).

What is the EPSS score for CVE-2013-4463?

CVE-2013-4463 has an EPSS score of 0.37% (29th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2013-4463?

Upgrade nova on debian 11 to 2013.2-3 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2013-4463

LOW

2.1

CVSS v2

NVD

Description

OpenStack Compute (Nova) Folsom, Grizzly, and Havana does not properly verify the virtual size of a QCOW2 image, which allows local users to cause a denial of service (host file system disk consumption) via a compressed QCOW2 image. NOTE: this issue is due to an incomplete fix for CVE-2013-2096.

CWE-399Resource Management Errors

How to fix

Remediation Available

novaDebian

Fixed in:2013.2-3CVE-2013-4463

novaUbuntu

Fixed in:1:2014.1-0ubuntu1.2USN-2247-1

python-novaUbuntu

Fixed in:1:2014.1-0ubuntu1.2USN-2247-1

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

0.37%probability of exploitation in 30 days

29thpercentile

Low risk: more likely to be exploited than 29% of all known CVEs.

References

Other references4

Related Vulnerabilities

Other CWE-399 (Resource Management Errors) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2009-3103	High	10.0	90%	-	-
CVE-2009-0075	High	9.3	85%	-	-
CVE-2005-1790	Low	2.6	83%	-	-
CVE-2010-0806	High	8.8	82%	KEV	-
CVE-2009-2526	High	7.8	82%	-	-
CVE-2015-1868	High	7.8	82%	-	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 2026-04-29.