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Case File

CVE-2009-4021

MEDIUM · CVSS 4.9 EPSS 0.41%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2009-11-25 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.9. It affects Linux. It may lead to a denial-of-service condition.

CVE
CVE-2009-4021
Severity
MEDIUM
CVSS
4.9
EPSS
0.41%
Linux

Original NVD Description

The fuse_direct_io function in fs/fuse/file.c in the fuse subsystem in the Linux kernel before 2.6.32-rc7 might allow attackers to cause a denial of service (invalid pointer dereference and OOPS) via vectors possibly related to a memory-consumption attack.