CVE-2009-4026

High

The mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (panic) via a crafted Delete Block ACK (aka DELBA) packet, related to an erroneous "code shuffling patch."

Package Linux Kernel
Published 2009-12-02
Last modified 2026-04-23
CVSS version 2.0
Patch available
Awaiting data

CVSS 2.0 score

7.8

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

References

8 total
Showing 5 of 8 references View all on NVD

Frequently asked questions

  • What is CVE-2009-4026?

    CVE-2009-4026 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2009-4026 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2009-4026?

    CVE-2009-4026 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 2.0). The vector string is AV:N/AC:L/Au:N/C:N/I:N/A:C .

  • Is there a patch available for CVE-2009-4026?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2009-4026 patch availability.

  • Is CVE-2009-4026 actively exploited?

    No. CVE-2009-4026 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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