CVE-2009-3939

Name: CVE-2009-3939
Creator: NVD / NIST
Published: 2009-11-16T19:30:01+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.44%

Last modified Jun 16, 2026

CVE-2009-3939 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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 this file.. EPSS estimates a 0.44% chance of exploitation in the next 30 days.

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 this file.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Probability

0.44%

35.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-732

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	<= 2.6.31.6	—
Redhat	Virtualization	5	—
Redhat	Enterprise Linux Desktop	5.0	—
Redhat	Enterprise Linux Eus	5.4	—
Redhat	Enterprise Linux Server	5.0	—
Redhat	Enterprise Linux Workstation	5.0	—
Canonical	Ubuntu Linux	6.06	—
Canonical	Ubuntu Linux	8.04	—
Canonical	Ubuntu Linux	8.10	—
Canonical	Ubuntu Linux	9.04	—
Canonical	Ubuntu Linux	9.10	—
Debian	Debian Linux	5.0	—
Avaya	Aura Application Enablement Services	5.2	—
Avaya	Aura Application Enablement Services	5.2.1	—
Avaya	Aura Communication Manager	5.2	—
Avaya	Aura Session Manager	1.1	—
Avaya	Aura Session Manager	5.2	—
Avaya	Aura Sip Enablement Services	5.2	—
Avaya	Aura System Manager	5.2	—
Avaya	Aura System Manager	6.0	—
Avaya	Aura System Platform	1.1	—
Avaya	Voice Portal	5.0	—
Opensuse	Opensuse	11.0	—
Opensuse	Opensuse	11.1	—
Opensuse	Opensuse	11.2	—
Suse	Linux Enterprise Desktop	10	Sp3
Suse	Linux Enterprise Desktop	11	—
Suse	Linux Enterprise Server	10	Sp3
Suse	Linux Enterprise Server	11	—

References

http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.htmlMailing List
http://osvdb.org/60201Broken Link
http://secunia.com/advisories/37909Broken Link
http://secunia.com/advisories/38017Broken Link
http://secunia.com/advisories/38276Broken Link
http://secunia.com/advisories/38492Broken Link
http://secunia.com/advisories/38779Broken Link
http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
http://www.debian.org/security/2010/dsa-1996Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/11/13/1Mailing List
http://www.securityfocus.com/bid/37019Broken Link, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=526068Exploit, Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10310Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7540Broken Link
https://rhn.redhat.com/errata/RHSA-2010-0046.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlMailing List
http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.htmlMailing List
http://osvdb.org/60201Broken Link
http://secunia.com/advisories/37909Broken Link
http://secunia.com/advisories/38017Broken Link
http://secunia.com/advisories/38276Broken Link
http://secunia.com/advisories/38492Broken Link
http://secunia.com/advisories/38779Broken Link
http://support.avaya.com/css/P8/documents/100073666Third Party Advisory
http://www.debian.org/security/2010/dsa-1996Third Party Advisory
http://www.openwall.com/lists/oss-security/2009/11/13/1Mailing List
http://www.securityfocus.com/bid/37019Broken Link, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-864-1Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=526068Exploit, Issue Tracking
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10310Broken Link
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7540Broken Link
https://rhn.redhat.com/errata/RHSA-2010-0046.htmlThird Party Advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.htmlThird Party Advisory

Timeline

Published: Nov 16, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-3939?

How severe is CVE-2009-3939?

CVE-2009-3939 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.44% probability of exploitation in the next 30 days.

How do I fix CVE-2009-3939?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-3939?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST