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CVE-2011-4347

18
FAUCET Score

CVE-2011-4347 is a denial-of-service vulnerability affecting the KVM subsystem in Linux kernel versions prior to 3.1.10. It allows a local, unprivileged host OS user to crash the host system by assigning PCI devices without proper permission checks. The vulnerability has a CVSS score of 4.0, indicating a low severity due to its local attack vector and high attack complexity, but it can lead to a complete loss of availability. There is no known active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.1.9CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.1.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:*
3.1.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*
3.1.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:*
3.1.4CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:L/AC:H/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
1.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.37%
Probability of exploitation in next 30 days
EPSS Percentile
29.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0037 is in the 44th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm-0:83-249.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-220.7.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6.1 EUS - Server OnlyFixed in: kernel-0:2.6.32-131.29.1.el6
View patch
redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kvm

Vendor Advisories (1)

redhatCVE-2011-4347Moderate

kernel: kvm: device assignment DoS

Nov 20, 2011

References

bugzilla.redhat.com / show_bug.cgi
Vendor Advisory
github.com / torvalds/linux/commit/c4e7f9022e506c6635a5037713c37118e23193e4
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.1.10
openwall.com / lists/oss-security/2011/11/24/7