What is CVE-2009-1186?

CVE-2009-1186 is a vulnerability in Udev Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2009-04-17.

Is CVE-2009-1186 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Udev Project

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.

Vulnerability class: Buffer Overflow

Published 2009-04-17 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 2.1 (Low). Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.005 (43.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 43.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Udev Project
Canonical Ubuntu Linux — versions 6.06, 7.10, 8.04
Debian Linux — versions 4.0, 5.0
Fedoraproject Fedora — versions 9, 10
openSUSE — versions 10.3, 11.0, 11.1
SUSE Linux Enterprise Debuginfo — versions 10, 11
SUSE Linux Enterprise Desktop — versions 10, 11
SUSE Linux Enterprise Server — versions 10, 11

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

Public proof-of-concept exploits

c-skills/CVEs

References

www.securityfocus.com/archive/1/502752/100/0/threaded (mailing-list, VDB Entry, Third Party Advisory)
wiki.rpath.com/wiki/Advisories:rPSA-2009-0063 (Broken Link)
secunia.com/advisories/34801 (Not Applicable, third-party-advisory)
www.securitytracker.com/id (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
lists.opensuse.org/opensuse-security-announce/2009-04/msg00006.html (vendor-advisory, Mailing List, Third Party Advisory)
bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
slackware.com/security/viewer.php (vendor-advisory, Third Party Advisory)
www.redhat.com/archives/fedora-package-announce/2009-April/msg00462.html (vendor-advisory, Mailing List, Third Party Advisory)
www.debian.org/security/2009/dsa-1772 (vendor-advisory, Third Party Advisory)
www.gentoo.org/security/en/glsa/glsa-200904-18.xml (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2009-1186?: CVE-2009-1186 is a vulnerability in Udev Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2009-04-17.
Is CVE-2009-1186 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.