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Case File

CVE-2009-4027

HIGH · CVSS 7.1 EPSS 2.29%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-12-02 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.1. It affects Linux. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2009-4027
Severity
HIGH
CVSS
7.1
EPSS
2.29%
Linux

Original NVD Description

Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.