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CVE-2011-3593

21
FAUCET Score

CVE-2011-3593 describes a denial-of-service vulnerability in the Linux kernel 2.6.32, specifically affecting Red Hat Enterprise Linux 6. Remote attackers can exploit a flaw in the vlan_hwaccel_do_receive function by sending specially crafted priority-tagged VLAN frames, leading to a system crash. The vulnerability has a CVSS score of 5.7, indicating a medium severity with an adjacent network attack vector and high impact on availability. There is no public exploit code available, nor is there evidence of active exploitation or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.6.32CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.32:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.7MEDIUM

AV:A/AC:M/Au:N/C:N/I:N/A:C

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.01%
Probability of exploitation in next 30 days
EPSS Percentile
59.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0101 is in the 96th percentile among its peer group of 1,749 CVEs.

Social Chatter

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

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.21.1.el6
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2011-3593Moderate

kernel: vlan: fix panic when handling priority tagged frames

Nov 15, 2011

References

bugzilla.redhat.com / show_bug.cgi
Vendor Advisory
oss.oracle.com / git
oss.oracle.com / git
openwall.com / lists/oss-security/2012/03/05/3