CVE-2009-3939

HIGHNVD 7.17.1—Trending — 4 sources updated this week

7.1

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.

CVSS v3: 7.1
EG Score: 7.1(medium)
EPSS: 13.8%
KEV: Not listed

Published

November 16, 2009

Last Modified

April 23, 2026

References (46)

cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
cve@mitrehttp://lists.opensuse.org/opensuse-security-announce/2010-03/msg00000.html
cve@mitrehttp://osvdb.org/60201
cve@mitrehttp://secunia.com/advisories/37909
cve@mitrehttp://secunia.com/advisories/38017
cve@mitrehttp://secunia.com/advisories/38276
cve@mitrehttp://secunia.com/advisories/38492
cve@mitrehttp://secunia.com/advisories/38779
cve@mitrehttp://support.avaya.com/css/P8/documents/100073666
cve@mitrehttp://www.debian.org/security/2010/dsa-1996

Patch Availability(4)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
ubuntu	linux-image-2.6.28-17-lpia (2.6.28-17.58) @ jaunty	2026-05-30	ubuntu
redhat	kernel-0:2.6.9-89.0.20.EL	2010-02-02	redhat
redhat	kernel-0:2.6.18-164.11.1.el5	2010-01-19	redhat
redhat	kernel-rt-0:2.6.24.7-139.el5rt	2009-12-03	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-732Incorrect Permission Assignment for Critical Resource

All Vendor Advisories

(4)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 15× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:10 UTCepss_batch
2026-06-02 20:10 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-06-01 13:49 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 22:28 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-31 00:13 UTCepss_batch
2026-05-30 14:36 UTCEG score recompute
2026-05-30 14:36 UTCVendor advisory
2026-05-30 14:36 UTCGHSA enrichment
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch

Frequently asked(5)

What is CVE-2009-3939?

CVE-2009-3939 is a high vulnerability published on November 16, 2009. The pollmodeio 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.

When was CVE-2009-3939 disclosed?

CVE-2009-3939 was first published in the National Vulnerability Database on November 16, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2009-3939 actively exploited?

CVE-2009-3939 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 13.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2009-3939?

CVE-2009-3939 has a CVSS v3 base score of 7.1 (NVD).

How do I remediate CVE-2009-3939?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-3939, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2009-3939

Published

Last Modified

References (46)

Patch Availability(4)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-3939?

Same vendor

Same CWE

CVE-2009-3939

📅 Published

🔄 Last Modified

🔗 References (46)

Patch Availability(4)

Weakness Classification(1)

All Vendor Advisories

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2009-3939?

🔗 Related CVEs(same vendor + same CWE)

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References (46)

Frequently asked(5)

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