CVE-2011-2699

High

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

Package Linux Kernel
Published 2012-05-24
Last modified 2026-04-29
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

7.5

out of 10
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

The following references provide additional information about CVE-2011-2699 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2011-2699?

    CVE-2011-2699 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 . CVE-2011-2699 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2011-2699?

    CVE-2011-2699 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2011-2699?

    No patch is currently available for CVE-2011-2699. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2011-2699 actively exploited?

    No — CVE-2011-2699 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.