CVE-2009-1186

Buffer overflow in the util_path_encode function in udev/lib/libudev-util.c in udev before 1.4.1 allows local users to cause a denial of service (service outage) via vectors that trigger a call with crafted arguments.

Published: 2009-04-17 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-1186 is rated Low Risk (23.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.54%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-1186

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.14% 0.54% +0.39%
2 2025-03-30 0.20% 0.14% -0.05%
3 2025-03-29 — 0.20% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-1186

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.1 2.0 LOW
AV:L/AC:L/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 2.9 [email protected]

Weakness enumeration for CVE-2009-1186

OS Trackers for CVE-2009-1186

vendor priority summary link
gentoo high CVE-2009-1186: 1 GLSA(s) (200904-18), 1 atom(s) (sys-fs/udev); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2009-1186
redhat medium — https://access.redhat.com/security/cve/CVE-2009-1186
ubuntu low CVE-2009-1186 low priority: Ubuntu including 1 source packages (udev), 5 status rows across 5 suites (dapper, gutsy, hardy, intrepid, upstream): released 5. https://ubuntu.com/security/CVE-2009-1186

Vendor comments (NVD) for CVE-2009-1186

  • Red Hat (2009-04-17T00:00:00)

    Not vulnerable. This issue did not affect the versions of udev as shipped with Red Hat Enterprise Linux 4, or 5.

Affected software / configurations for CVE-2009-1186

Vendor Product Version Raw CPE
udev_project udev < 141 cpe:2.3:a:udev_project:udev:*:*:*:*:*:*:*:*
suse linux_enterprise_debuginfo 10 cpe:2.3:a:suse:linux_enterprise_debuginfo:10:sp2:*:*:*:*:*:*
suse linux_enterprise_debuginfo 11 cpe:2.3:a:suse:linux_enterprise_debuginfo:11:-:*:*:*:*:*:*
opensuse opensuse 10.3 cpe:2.3:o:opensuse:opensuse:10.3:*:*:*:*:*:*:*
opensuse opensuse 11.0 cpe:2.3:o:opensuse:opensuse:11.0:*:*:*:*:*:*:*
opensuse opensuse 11.1 cpe:2.3:o:opensuse:opensuse:11.1:*:*:*:*:*:*:*
suse linux_enterprise_desktop 10 cpe:2.3:o:suse:linux_enterprise_desktop:10:sp2:*:*:*:*:*:*
suse linux_enterprise_desktop 11 cpe:2.3:o:suse:linux_enterprise_desktop:11:-:*:*:*:*:*:*
suse linux_enterprise_server 10 cpe:2.3:o:suse:linux_enterprise_server:10:sp2:*:*:*:*:*:*
suse linux_enterprise_server 11 cpe:2.3:o:suse:linux_enterprise_server:11:-:*:*:*:*:*:*
debian debian_linux 4.0 cpe:2.3:o:debian:debian_linux:4.0:*:*:*:*:*:*:*
debian debian_linux 5.0 cpe:2.3:o:debian:debian_linux:5.0:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:*:*:*:*
canonical ubuntu_linux 7.10 cpe:2.3:o:canonical:ubuntu_linux:7.10:*:*:*:*:*:*:*
canonical ubuntu_linux 8.04 cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:-:*:*:*
canonical ubuntu_linux 8.10 cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
fedoraproject fedora 9 cpe:2.3:o:fedoraproject:fedora:9:*:*:*:*:*:*:*
fedoraproject fedora 10 cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*

References for CVE-2009-1186

URL Tags
http://git.kernel.org/?p=linux/hotplug/udev.git%3Ba=commitdiff%3Bh=662c3110803bd8c1aedacc36788e6fd028944314
http://lists.opensuse.org/opensuse-security-announce/2009-04/msg00006.html Mailing List Third Party Advisory
http://secunia.com/advisories/34731 Not Applicable
http://secunia.com/advisories/34750 Not Applicable
http://secunia.com/advisories/34753 Not Applicable
http://secunia.com/advisories/34771 Not Applicable
http://secunia.com/advisories/34776 Not Applicable
http://secunia.com/advisories/34785 Not Applicable
http://secunia.com/advisories/34787 Not Applicable
http://secunia.com/advisories/34801 Not Applicable
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.446399 Third Party Advisory
http://wiki.rpath.com/Advisories:rPSA-2009-0063 Broken Link
http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0063 Broken Link
http://www.debian.org/security/2009/dsa-1772 Third Party Advisory
http://www.gentoo.org/security/en/glsa/glsa-200904-18.xml Third Party Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:103 Broken Link
http://www.securityfocus.com/archive/1/502752/100/0/threaded Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/34539 Third Party Advisory VDB Entry
http://www.securitytracker.com/id?1022068 Broken Link Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/usn-758-1 Third Party Advisory
http://www.vupen.com/english/advisories/2009/1053 Permissions Required
https://bugzilla.redhat.com/show_bug.cgi?id=495052 Issue Tracking Patch Third Party Advisory
https://launchpad.net/bugs/cve/2009-1186 Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00462.html Mailing List Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00463.html Mailing List Third Party Advisory
cvelogic Threat Intelligence