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CVE-2013-4375

12
FAUCET Score

CVE-2013-4375 describes a denial-of-service vulnerability affecting the qdisk PV disk backend in QEMU-Xen versions 4.2.x and 4.3.x before 4.3.1, as well as QEMU 1.1 and other versions. This flaw allows local HVM guests to exhaust domain grant references, leading to a system crash. With a CVSS score of 2.7, this vulnerability is considered low severity, requiring authenticated access (Au:S) and adjacent network access (AV:A) for exploitation, resulting in a partial availability impact (A:P). There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:1.1:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:1.1:rc1:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:1.1:rc2:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:1.1:rc3:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:qemu:qemu:1.1:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.7LOW

AV:A/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
5.1
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.58%
Probability of exploitation in next 30 days
EPSS Percentile
44.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0059 is in the 83rd percentile among its peer group of 85 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2013-4375Moderate

xen: qemu disk backend (qdisk) resource leak (XSA-71)

Oct 10, 2013

References

security.gentoo.org / glsa/glsa-201407-03.xml
openwall.com / lists/oss-security/2013/10/10/14
ubuntu.com / usn/USN-2092-1
xenproject.org / downloads/xen-archives/supported-xen-43-series/xen-431.html
Vendor Advisory