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CVE-2009-4536

24
FAUCET Score

CVE-2009-4536 is a vulnerability in the e1000 driver within the Linux kernel (versions 2.6.32.3 and earlier), affecting products like Debian Linux. It allows remote attackers to bypass packet filters by sending oversized Ethernet frames, where trailing payload data is incorrectly processed as a complete frame. This vulnerability has a CVSS score of 7.8, indicating high severity with a network attack vector, low complexity, and potential for complete denial of service. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.32.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
5.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.23%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0523 is in the 85th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (8)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-146.el5rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3 Extended Lifecycle SupportFixed in: kernel-0:2.4.21-66.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-89.0.19.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4.7 Z StreamFixed in: kernel-0:2.6.9-78.0.29.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-164.10.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.2 Z StreamFixed in: kernel-0:2.6.18-92.1.35.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.3.Z - Server OnlyFixed in: kernel-0:2.6.18-128.12.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Virtualization for RHEL-5Fixed in: rhev-hypervisor-0:5.4-2.1.8.el5_4rhev2_1
View patch

Vendor Advisories (1)

redhatCVE-2009-4536Important

kernel: e1000 issue reported at 26c3

Dec 28, 2009

References

blog.c22.cc / 2009/12/27/26c3-cat-procsysnetipv4fuckups
Third Party Advisory
events.ccc.de / congress/2009/Fahrplan/events/3596.en.html
Third Party Advisory
lists.fedoraproject.org / pipermail/package-announce/2010-February/035159.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-01/msg00005.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-01/msg00008.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-02/msg00002.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-02/msg00005.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-02/msg00007.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2010-03/msg00000.html
Mailing ListThird Party Advisory
marc.info
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
secunia.com / advisories/35265
Third Party Advisory
secunia.com / advisories/38031
Third Party Advisory
secunia.com / advisories/38276
Third Party Advisory
secunia.com / advisories/38296
Third Party Advisory
secunia.com / advisories/38492
Third Party Advisory
secunia.com / advisories/38610
Third Party Advisory
secunia.com / advisories/38779
Third Party Advisory
securitytracker.com / id
Third Party AdvisoryVDB Entry
exchange.xforce.ibmcloud.com / vulnerabilities/55648
Third Party AdvisoryVDB Entry
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10607
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12440
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A13226
Third Party Advisory
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7453
Third Party Advisory
rhn.redhat.com / errata/RHSA-2010-0095.html
Third Party Advisory
debian.org / security/2010/dsa-1996
Third Party Advisory
debian.org / security/2010/dsa-2005
Third Party Advisory
openwall.com / lists/oss-security/2009/12/28/1
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2009/12/29/2
Mailing ListThird Party Advisory
openwall.com / lists/oss-security/2009/12/31/1
Mailing ListThird Party Advisory
redhat.com / support/errata/RHSA-2010-0019.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0020.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0041.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0053.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0111.html
Third Party Advisory
redhat.com / support/errata/RHSA-2010-0882.html
Third Party Advisory
securityfocus.com / bid/37519
Third Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2011-0009.html
Third Party Advisory