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CVE-2011-2898

19
FAUCET Score

CVE-2011-2898 describes an information disclosure vulnerability in the Linux kernel's AF_PACKET module (net/packet/af_packet.c) affecting versions prior to 2.6.39.3. This flaw allows local users to potentially access sensitive VLAN Tag Control Information through a specially crafted application. Rated Medium with a CVSS score of 5.5, the vulnerability requires local access and user interaction (UI:R) to achieve high confidentiality impact (C:H) without affecting integrity or availability. 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
< 2.6.39.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 42nd percentile among its peer group of 5,758 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.17.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.79.el6rt
View patch

Vendor Advisories (1)

redhatCVE-2011-2898Low

kernel: af_packet: infoleak

Jun 7, 2011

References

ftp.osuosl.org / pub/linux/kernel/v2.6/ChangeLog-2.6.39.3
Broken Link
git.kernel.org
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / torvalds/linux/commit/13fcb7bd322164c67926ffe272846d4860196dc6
PatchThird Party Advisory
openwall.com / lists/oss-security/2011/08/03/7
Mailing ListPatchThird Party Advisory