kernel: megaraid_sas permissions in sysfs
Published Nov 16, 2009
7.1
HIGHCVSS 3.1
EPSS 0.44%
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.
Affected products
No data.
Configuration 1
- ≤ 2.6.31.6
Configuration 2
- 5
- 5.0
- 5.4
- 5.0
- 5.0
Configuration 3
- 6.06
- 8.04
- 8.10
- 9.04
- 9.10
Configuration 4
- 5.0
Configuration 5
- 5.2
- 5.2.1
- 5.2
- 1.1
- 5.2
- 5.2
- 5.2
- 6.0
- 1.1
- 5.0
Configuration 6
- 11.0
- 11.1
- 11.2
- 10
- 11
- 10
- 11
No data.
MRG for RHEL-5
kernel-rt-0:2.6.24.7-139.el5rt
Fixed · RHSA-2009:1635
Red Hat Enterprise Linux 4
kernel-0:2.6.9-89.0.20.EL
Fixed · RHSA-2010:0076
Red Hat Enterprise Linux 5
kernel-0:2.6.18-164.11.1.el5
Fixed · RHSA-2010:0046
| Product | Package | State | Advisory |
|---|---|---|---|
| MRG for RHEL-5 | kernel-rt-0:2.6.24.7-139.el5rt | Fixed | RHSA-2009:1635 |
| Red Hat Enterprise Linux 4 | kernel-0:2.6.9-89.0.20.EL | Fixed | RHSA-2010:0076 |
| Red Hat Enterprise Linux 5 | kernel-0:2.6.18-164.11.1.el5 | Fixed | RHSA-2010:0046 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of the Linux kernel as shipped with Red Hat Enterprise Linux 3, as it does not implement the sysfs file system ("/sys/"), through which poll_mode_io file is exposed by the megaraid_sas driver.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.44% (0.00444) | 36.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.44% (0.00444) | 35.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00045) | 10.94th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 14.69th | v3 (v2023.03.01) |
| May 24, 2024 | 0.04% (0.00044) | 12.40th | v3 (v2023.03.01) |
| Jan 26, 2024 | 0.04% (0.00044) | 10.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (26)
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html vendor-advisoryx_refsource_SUSEMailing List
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html vendor-advisoryx_refsource_SUSEMailing List
- http://osvdb.org/60201 vdb-entryx_refsource_OSVDBBroken Link
- http://secunia.com/advisories/37909 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/38017 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/38276 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/38492 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/38779 third-party-advisoryx_refsource_SECUNIABroken Link
- http://support.avaya.com/css/P8/documents/100073666 x_refsource_CONFIRMThird Party Advisory
- http://www.debian.org/security/2010/dsa-1996 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2009/11/13/1 mailing-listx_refsource_MLISTMailing List
- http://www.securityfocus.com/bid/37019 vdb-entryx_refsource_BIDBroken LinkThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/usn-864-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2009-3939 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=526068 x_refsource_MISCExploitIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-3939
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10310 vdb-entrysignaturex_refsource_OVALBroken Link
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7540 vdb-entrysignaturex_refsource_OVALBroken Link
- https://rhn.redhat.com/errata/RHSA-2010-0046.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2009-3939
Change history (0)
No recorded changes yet.