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CVE-2013-7266

18
FAUCET Score

CVE-2013-7266 describes an information disclosure vulnerability in the Linux kernel, specifically within the mISDN_sock_recvmsg function, affecting versions prior to 3.12.4. This flaw allows local users to extract sensitive data from kernel memory due to an inconsistency between a length value and the size of a data structure during recvfrom, recvmmsg, or recvmsg system calls. The vulnerability has a CVSS score of 4.9, indicating a medium severity. It requires local access (AV:L) and has low attack complexity (AC:L), with no authentication needed (Au:N), leading to a complete compromise of confidentiality (C:C) but no impact on integrity or availability. There is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.12.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc2:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc3:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:3.0:rc4:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

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

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 66th percentile among its peer group of 3,052 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 (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-431.11.2.el6
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise MRG 2Fixed in: realtime-kernel
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel

Vendor Advisories (1)

redhatCVE-2013-7266Low

Kernel: net: information leak in recvmsg handler msg_name & msg_namelen logic

Nov 21, 2013

References

git.kernel.org
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/55882
secunia.com / advisories/56036
github.com / torvalds/linux/commit/f3d3342602f8bcbf37d7c46641cb9bca7618eb1c
kernel.org / pub/linux/kernel/v3.x/ChangeLog-3.12.4
openwall.com / lists/oss-security/2013/12/31/7
ubuntu.com / usn/USN-2109-1
ubuntu.com / usn/USN-2110-1
ubuntu.com / usn/USN-2113-1
ubuntu.com / usn/USN-2117-1
ubuntu.com / usn/USN-2128-1
ubuntu.com / usn/USN-2129-1
ubuntu.com / usn/USN-2135-1
ubuntu.com / usn/USN-2136-1
ubuntu.com / usn/USN-2138-1
ubuntu.com / usn/USN-2139-1
ubuntu.com / usn/USN-2141-1