synced 12 MIN AGO
01 Record

CVE-2009-3939

The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying

UnratedPUBLISHEDCNA: mitre
CNA base scoreUnratedNo CNA CVSS vector

02 Description

The poll_mode_io file for the megaraid_sas driver in the Linux kernel 2.6.31.6 and earlier has world-writable permissions, which allows local users to change the I/O mode of the driver by modifying

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.3% of scored records. A rank, not a probability.
NVD base score
7.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-16.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2009-11-16 19:00Z16 YR AGO
Last updated
2024-08-07 06:45Z2 YR AGO
Reserved
2009-11-16
Assigning CNA
mitre
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-732Incorrect Permission Assignment for Critical ResourceClass
Data version
5.1
Document digest
d9ba4205cc3bce1d7804e74f2eb4f5d072be23324ee8e6a8f8609d906bd263b7

05 Affected products

VendorProductVersionsPlatforms
avayaaura_communication_managerNot specified—
avayaaura_session_managerNot specified—
avayaaura_sip_enablement_servicesNot specified—
avayaaura_system_managerNot specified—
avayaaura_system_platformNot specified—
avayavoice_portalNot specified—
canonicalubuntu_linuxNot specified—
debiandebian_linuxNot specified—
linuxlinux_kernelNot specified—
opensuseopensuseNot specified—
redhatenterprise_linuxNot specified—
redhatenterprise_linux_desktopNot specified—
redhatenterprise_linux_eusNot specified—
redhatenterprise_linux_serverNot specified—
redhatenterprise_linux_workstationNot specified—
redhatenterprise_mrgNot specified—
redhatvirtualizationNot specified—
suselinux_enterprise_desktopNot specified—
suselinux_enterprise_serverNot specified—

06 References