What is CVE-2009-3889?

CVE-2009-3889 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.6 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2009-3889 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2009-3889?

CVE-2009-3889 has a CVSS score of 6.6 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:C/A:C.

Is there a patch available for CVE-2009-3889?

No patch is currently available for CVE-2009-3889. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2009-3889 actively exploited?

CVE-2009-3889 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-2009-3889

Medium

The dbg_lvl file for the megaraid_sas driver in the Linux kernel before 2.6.27 has world-writable permissions, which allows local users to change the (1) behavior and (2) logging level of the driver by modifying this file.

Package Linux Kernel

Published 2009-11-16

Last modified 2026-04-23

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

6.6

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

Availability

Vector string

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

Weakness type

CWE-264

CVE-2009-3889 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-2009-3889 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00007.html
Osvdb
http://osvdb.org/60202
Secunia
http://secunia.com/advisories/37909
Support
http://support.avaya.com/css/P8/documents/100073666
Debian Security
http://www.debian.org/security/2010/dsa-2005
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27

Vendor Advisory
Openwall
http://www.openwall.com/lists/oss-security/2009/11/13/1
Openwall
http://www.openwall.com/lists/oss-security/2009/11/13/4
Securityfocus
http://www.securityfocus.com/bid/37019
Ubuntu Security
http://www.ubuntu.com/usn/usn-864-1
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=526068

Exploit
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11018
Oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7163
Red Hat
https://rhn.redhat.com/errata/RHSA-2010-0046.html
Red Hat
https://rhn.redhat.com/errata/RHSA-2010-0095.html
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=66dca9b8c50b5e59d3bea8b21cee5c6dae6c9c46
Patch

Details

CVE ID CVE-2009-3889

Severity Medium

CVSS score 6.6 / 10

CVSS version 2.0

Published 2009-11-16

Modified 2026-04-23

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2009-3889?

CVE-2009-3889 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.6 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2009-3889 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2009-3889?

CVE-2009-3889 has a CVSS score of 6.6 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:C/A:C.
Is there a patch available for CVE-2009-3889?

No patch is currently available for CVE-2009-3889. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2009-3889 actively exploited?

No — CVE-2009-3889 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 →