{"cve":"CVE-2009-3939","nvd":{"published":"2009-11-16T19:30:01.000","modified":"2026-06-16T23:12:39.927","status":"Modified","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","score":7.1},"cwes":["CWE-732"],"references":["http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html","http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html","http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html","http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00005.html","http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html"],"products":["avaya:aura_application_enablement_services","avaya:aura_communication_manager","avaya:aura_session_manager","avaya:aura_sip_enablement_services","avaya:aura_system_manager","avaya:aura_system_platform","avaya:voice_portal","canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","opensuse:opensuse","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_workstation","redhat:virtualization","suse:linux_enterprise_desktop","suse:linux_enterprise_server"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3939","score":0.00444,"percentile":0.38608,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}