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CVE-2006-5751

18
FAUCET Score

CVE-2006-5751 describes an integer overflow vulnerability in the get_fdb_entries function within the Linux kernel (before version 2.6.18.4). This flaw allows a local attacker to execute arbitrary code by supplying a large maxnum value in an ioctl request. With a CVSS score of 7.2, this vulnerability is considered high severity due to its local attack vector, low attack complexity, and complete impact on confidentiality, integrity, and availability. 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
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc1:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc2:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 55th percentile among its peer group of 3,241 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 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 (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-42.0.8.EL
View patch

Vendor Advisories (1)

redhatCVE-2006-5751Important

Linux kernel get_fdb_entries() integer overflow

Nov 29, 2006

References

kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.18.4
projects.info-pull.com / mokb/MOKB-29-11-2006.html
rhn.redhat.com / errata/RHSA-2007-0014.html
secunia.com / advisories/23073
secunia.com / advisories/23252
secunia.com / advisories/23370
secunia.com / advisories/23384
secunia.com / advisories/23474
secunia.com / advisories/23593
secunia.com / advisories/23752
secunia.com / advisories/23997
secunia.com / advisories/24206
secunia.com / advisories/24547
exchange.xforce.ibmcloud.com / vulnerabilities/30588
issues.rpath.com / browse/RPL-803
issues.rpath.com / browse/RPL-837
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10151
support.avaya.com / elmodocs2/security/ASA-2007-063.htm
kernel.org / git
kernel.org / git
mandriva.com / security/advisories
mandriva.com / security/advisories
novell.com / linux/security/advisories/2006_79_kernel.html
novell.com / linux/security/advisories/2007_21_kernel.html
securityfocus.com / archive/1/453681/100/0/threaded
securityfocus.com / bid/21353
Patch
ubuntu.com / usn/usn-395-1
us.debian.org / security/2006/dsa-1233
vupen.com / english/advisories/2006/4781