CVE-2013-4463

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.

Published: 2014-02-06 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4463 is rated Low Risk (18.6/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.37%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4463

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.15% 0.37% +0.21%
2 2026-05-24 0.06% 0.15% +0.09%
3 2025-03-17 — 0.06% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4463

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2013-4463

GitHub Security Advisory for CVE-2013-4463

GHSA-5644-2v3h-5w4x · Severity: low · Ecosystem: pip — OpenStack Nova denial of service through compressed disk images

OS Trackers for CVE-2013-4463

vendor priority summary link
debian low CVE-2013-4463 low priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4463
redhat medium — https://access.redhat.com/security/cve/CVE-2013-4463
ubuntu low CVE-2013-4463 low priority: Ubuntu including 1 source packages (nova), 7 status rows across 7 suites (lucid, precise, quantal, raring, saucy, trusty, upstream): released 3, DNE 2, ignored 2. https://ubuntu.com/security/CVE-2013-4463

Affected software / configurations for CVE-2013-4463

Vendor Product Version Raw CPE
openstack folsom — cpe:2.3:a:openstack:folsom:-:*:*:*:*:*:*:*
openstack grizzly — cpe:2.3:a:openstack:grizzly:-:*:*:*:*:*:*:*
openstack havana — cpe:2.3:a:openstack:havana:-:*:*:*:*:*:*:*

References for CVE-2013-4463

cvelogic Threat Intelligence