CVE-2011-4326

High

The udp6_ufo_fragment function in net/ipv6/udp.c in the Linux kernel before 2.6.39, when a certain UDP Fragmentation Offload (UFO) configuration is enabled, allows remote attackers to cause a denial of service (system crash) by sending fragmented IPv6 UDP packets to a bridge device.

Package Linux Kernel
Published 2012-05-17
Last modified 2026-04-29
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

7.1

out of 10
High
Attack Vector
Network
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
None
Integrity
None
Availability
Vector string
AV:N/AC:M/Au:N/C:N/I:N/A:C

Weakness type

CWE-399

CVE-2011-4326 is classified as CWE-399

See CWE-399 on MITRE CWE for full details on this weakness type.

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2011-4326?

    CVE-2011-4326 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2011-4326 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2011-4326?

    CVE-2011-4326 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 2.0). The vector string is AV:N/AC:M/Au:N/C:N/I:N/A:C .

  • Is there a patch available for CVE-2011-4326?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2011-4326 patch availability.

  • Is CVE-2011-4326 actively exploited?

    No. CVE-2011-4326 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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