How severe is CVE-2010-4263?

CVE-2010-4263 has a CVSS 2.0 base score of 7.9, rated high severity.

Is CVE-2010-4263 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-4263?

CVE-2010-4263 primarily affects Linux Linux Kernel. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-4263?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2010-4263 published?

CVE-2010-4263 was published on 2011-01-18 and last updated on 2026-06-16.

CVE-2010-4263

CVE-2010-4263 is a high-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 7.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: High (CVSS 2.0 base score 7.9)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Linux Linux Kernel
Published: 2011-01-18
Last modified: 2026-06-16

Description

The igb_receive_skb function in drivers/net/igb/igb_main.c in the Intel Gigabit Ethernet (aka igb) subsystem in the Linux kernel before 2.6.34, when Single Root I/O Virtualization (SR-IOV) and promiscuous mode are enabled but no VLANs are registered, allows remote attackers to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact via a VLAN tagged frame.

Frequently asked questions

What is CVE-2010-4263?: The igb_receive_skb function in drivers/net/igb/igb_main.c in the Intel Gigabit Ethernet (aka igb) subsystem in the Linux kernel before 2.6.34, when Single Root I/O Virtualization (SR-IOV) and promiscuous mode are enabled but no VLANs are registered, allows remote attackers to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact via a VLAN tagged frame.
How severe is CVE-2010-4263?: CVE-2010-4263 has a CVSS 2.0 base score of 7.9, rated high severity.
Is CVE-2010-4263 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2010-4263?: CVE-2010-4263 primarily affects Linux Linux Kernel. In total, 24 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-4263?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2010-4263 published?: CVE-2010-4263 was published on 2011-01-18 and last updated on 2026-06-16.

References

Affected products (24)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.0.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.0.1:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.0.2:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.0.3:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.5:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.5:update1:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.5:update2:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:3.5:update3:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:3.5:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:3.5:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:3:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.0:4:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:4.1:2:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:*:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:1:*:*:*:*:*:*
cpe:2.3:o:vmware:esxi:5.0:2:*:*:*:*:*:*

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