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CVE-2011-1748

18
FAUCET Score

CVE-2011-1748 describes a NULL pointer dereference vulnerability in the raw_release function of the Linux kernel (before 2.6.39-rc6), specifically within the net/can/raw.c component. This flaw allows local users to trigger a denial of service. With a CVSS score of 4.9, it is considered a low-severity vulnerability, requiring local access and low attack complexity to achieve a complete availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:-:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc1:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc2:*:*:*:*:*:*
2.6.39CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.39:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
33.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 61st percentile among its peer group of 3,049 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (4)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-131.2.1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: kernel-rt-0:2.6.33.9-rt31.75.el6rt
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 1Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2011-1748Moderate

kernel: missing check in can/bcm and can/raw socket releases

Apr 20, 2011

References

git.kernel.org
openwall.com / lists/oss-security/2011/04/20/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/21/7
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/22/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2011/04/25/4
Mailing ListThird Party Advisory
permalink.gmane.org / gmane.linux.network/192974
Broken Link
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
kernel.org / pub/linux/kernel/v2.6/testing/ChangeLog-2.6.39-rc6
Broken Link
securityfocus.com / bid/47835
Third Party AdvisoryVDB Entry