Is CVE-2014-3633 in the CISA KEV catalog?

No. CVE-2014-3633 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2014-3633?

CVE-2014-3633 has a CVSS v2 base score of 5.8 (MEDIUM).

What is the EPSS score for CVE-2014-3633?

CVE-2014-3633 has an EPSS score of 2.75% (84th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2014-3633?

Upgrade libvirt on debian 11 to 1.2.8-2 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2014-3633

MEDIUMEPSS 84th pctl

5.8

CVSS v2

NVD

Description

The qemuDomainGetBlockIoTune function in qemu/qemu_driver.c in libvirt before 1.2.9, when a disk has been hot-plugged or removed from the live image, allows remote attackers to cause a denial of service (crash) or read sensitive heap information via a crafted blkiotune query, which triggers an out-of-bounds read.

CWE-119Buffer Overflow

How to fix

Remediation Available

libvirtDebian

Fixed in:1.2.8-2CVE-2014-3633

libvirtUbuntu

Fixed in:1.2.2-0ubuntu13.1.5USN-2366-1

libvirt-binUbuntu

Fixed in:1.2.2-0ubuntu13.1.5USN-2366-1

libvirt0Ubuntu

Fixed in:1.2.2-0ubuntu13.1.5USN-2366-1

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

2.75%probability of exploitation in 30 days

84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

Vendor Advisory1

security.libvirt.org

Other references9

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.