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?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2010-4263 patch availability.

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

14 total

Openwall
http://openwall.com/lists/oss-security/2010/12/06/3

Exploit Mailing List Patch Third Party Advisory
Openwall
http://openwall.com/lists/oss-security/2010/12/06/9

Exploit Mailing List Patch Third Party Advisory
Kernel.org
https://bugzilla.kernel.org/show_bug.cgi?id=15582

Exploit Issue Tracking Patch Vendor Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=660188

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

Release Notes Vendor Advisory

Showing 5 of 14 references 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?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2010-4263 patch availability.
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.