CVE-2009-4026

The mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote...

7.8 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."

Exploit likelihood

3.06%Up 1.7 points since Feb 4, 2022

What each source reports

NVD Score used 7.8

Record: CVE-2009-4026
CVSS 2.0: 7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Updated: 2026-11-02

CVE List No score

Record: CVE-2009-4026
Updated: 2026-11-02

EUVDEUVD-2009-3997 No score

Record: EUVD-2009-3997
Updated: 2026-11-03

GitHub AdvisoriesGHSA-3rff-g889-h6g3 No score

The mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote...

Record: GHSA-3rff-g889-h6g3
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10128-1 No score

kernel-debug-4.8.13-1.1 on GA media

These are all security issues fixed in the kernel-debug-4.8.13-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10128-1
Updated: 2026-11-02

Affected products

linux kernel

Affected packages

Affected packages
Package	Affected	Fixed
`linux-2.6` Debian:6.0 From an advisory covering 3 CVEs	before 2.6.30-8squeeze1	2.6.30-8squeeze1
`kernel-source` openSUSE:Tumbleweed From an advisory covering 82 CVEs	before 4.8.13-1.1	4.8.13-1.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2009-4026 is a high vulnerability (CVSS 7.8) in Linux Kernel, published December 2, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.06%, the 87th percentile. No source names a fixed version.

References

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