What is CVE-2010-4263?

CVE-2010-4263 is a High severity Linux kernel vulnerability with a CVSS score of 7.9 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2010-4263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2010-4263?

CVE-2010-4263 has a CVSS score of 7.9 out of 10, rated High severity. The vector string is AV:A/AC:M/Au:N/C:C/I:C/A:C.

Is there a patch available for CVE-2010-4263?

No patch is currently available for CVE-2010-4263. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2010-4263 actively exploited?

CVE-2010-4263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2010-4263

High

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.

Package Linux Kernel

Published 2011-01-18

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

7.9

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Vector string

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

Weakness type

CWE-476

CVE-2010-4263 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2010-4263 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Secunia
http://secunia.com/advisories/42884

Third Party Advisory
Secunia
http://secunia.com/advisories/42890

Third Party Advisory
Secunia
http://secunia.com/advisories/46397

Third Party Advisory
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.34

Release Notes Vendor Advisory
Red Hat
http://www.redhat.com/support/errata/RHSA-2011-0007.html

Third Party Advisory
Red Hat
http://www.redhat.com/support/errata/RHSA-2011-0017.html

Third Party Advisory
Securityfocus
http://www.securityfocus.com/archive/1/520102/100/0/threaded

Third Party Advisory VDB Entry
Securityfocus
http://www.securityfocus.com/bid/45208

Third Party Advisory VDB Entry
Vmware
http://www.vmware.com/security/advisories/VMSA-2011-0012.html

Third Party Advisory
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=31b24b955c3ebbb6f3008a6374e61cf7c05a193c
Patch
Kernel patch commit
http://openwall.com/lists/oss-security/2010/12/06/3
Patch
Kernel patch commit
http://openwall.com/lists/oss-security/2010/12/06/9
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2010-4263

Severity High

CVSS score 7.9 / 10

CVSS version 2.0

Published 2011-01-18

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2010-4263?

CVE-2010-4263 is a High severity Linux kernel vulnerability with a CVSS score of 7.9 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2010-4263 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2010-4263?

CVE-2010-4263 has a CVSS score of 7.9 out of 10, rated High severity (CVSS 2.0). The vector string is AV:A/AC:M/Au:N/C:C/I:C/A:C.
Is there a patch available for CVE-2010-4263?

No patch is currently available for CVE-2010-4263. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2010-4263 actively exploited?

No — CVE-2010-4263 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →