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CVE-2010-4263

26
FAUCET Score

CVE-2010-4263 is a denial-of-service vulnerability affecting the Intel Gigabit Ethernet (igb) subsystem in the Linux kernel before version 2.6.34, as well as VMware ESX and ESXi. Specifically, it involves a NULL pointer dereference in the igb_receive_skb function when SR-IOV and promiscuous mode are enabled without registered VLANs, triggered by a VLAN tagged frame. This vulnerability carries a high CVSS score of 7.9, indicating a critical impact with complete confidentiality, integrity, and availability compromise, and can be exploited by an adjacent attacker with medium attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.6.34CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
3.0.0CPE matchmatch criteria
cpe:2.3:o:vmware:esx:3.0.0:*:*:*:*:*:*:*
3.0.1CPE matchmatch criteria
cpe:2.3:o:vmware:esx:3.0.1:*:*:*:*:*:*:*
3.0.2CPE matchmatch criteria
cpe:2.3:o:vmware:esx:3.0.2:*:*:*:*:*:*:*
3.0.3CPE matchmatch criteria
cpe:2.3:o:vmware:esx:3.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.9HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.94%
Probability of exploitation in next 30 days
EPSS Percentile
85.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0294 is in the 90th percentile among its peer group of 239 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-238.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: kernel-0:2.6.32-71.14.1.el6
View patch

Vendor Advisories (1)

redhatCVE-2010-4263Important

kernel: igb panics when receiving tag vlan packet

Mar 19, 2010

References

git.kernel.org
openwall.com / lists/oss-security/2010/12/06/3
ExploitMailing ListPatchThird Party Advisory
openwall.com / lists/oss-security/2010/12/06/9
ExploitMailing ListPatchThird Party Advisory
bugzilla.kernel.org / show_bug.cgi
ExploitIssue TrackingPatchVendor Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingPatchThird Party Advisory
secunia.com / advisories/42884
Third Party Advisory
secunia.com / advisories/42890
Third Party Advisory
secunia.com / advisories/46397
Third Party Advisory
kernel.org / pub/linux/kernel/v2.6/ChangeLog-2.6.34
Release NotesVendor Advisory
redhat.com / support/errata/RHSA-2011-0007.html
Third Party Advisory
redhat.com / support/errata/RHSA-2011-0017.html
Third Party Advisory
securityfocus.com / archive/1/520102/100/0/threaded
Third Party AdvisoryVDB Entry
securityfocus.com / bid/45208
Third Party AdvisoryVDB Entry
vmware.com / security/advisories/VMSA-2011-0012.html
Third Party Advisory