What is CVE-2009-3556?

CVE-2009-3556 is a Low severity Linux kernel vulnerability with a CVSS score of 1.9 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2009-3556 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-3556?

CVE-2009-3556 has a CVSS score of 1.9 out of 10, rated Low severity. The vector string is AV:L/AC:M/Au:N/C:N/I:P/A:N.

Is there a patch available for CVE-2009-3556?

No patch is currently available for CVE-2009-3556. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-3556 actively exploited?

CVE-2009-3556 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/264.html

CVE-2009-3556

Low

A certain Red Hat configuration step for the qla2xxx driver in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when N_Port ID Virtualization (NPIV) hardware is used, sets world-writable permissions for the (1) vport_create and (2) vport_delete files under /sys/class/scsi_host/, which allows local users to make arbitrary changes to SCSI host attributes by modifying these files.

Package Linux Kernel

Published 2010-01-27

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

1.9

out of 10

Low

Attack Vector

Local

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

None

Integrity

Availability

None

Vector string

AV:L/AC:M/Au:N/C:N/I:P/A:N

Weakness type

CWE-264

CVE-2009-3556 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2009-3556 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Details

CVE ID CVE-2009-3556

Severity Low

CVSS score 1.9 / 10

CVSS version 2.0

Published 2010-01-27

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-3556?

CVE-2009-3556 is a Low severity Linux kernel vulnerability with a CVSS score of 1.9 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2009-3556 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-3556?

CVE-2009-3556 has a CVSS score of 1.9 out of 10, rated Low severity (CVSS 2.0). The vector string is AV:L/AC:M/Au:N/C:N/I:P/A:N.
Is there a patch available for CVE-2009-3556?

No patch is currently available for CVE-2009-3556. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-3556 actively exploited?

No — CVE-2009-3556 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →