CVE-2010-4176

plymouth-pretrigger.sh in dracut and udev, when running on Fedora 13 and 14, sets weak permissions for the /dev/systty device file, which allows remote authenticated users to read terminal data from tty0 for local users.

Published: 2010-12-07 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-4176 is rated Low Risk (29.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.19%). 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-2010-4176

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 2025-04-13 0.25% 0.19% -0.06%
2 2025-04-01 0.19% 0.25% +0.06%
3 2025-03-30 — 0.19% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-4176

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2010-4176

OS Trackers for CVE-2010-4176

vendor priority summary link
debian unimportant CVE-2010-4176 unimportant priority: Debian including 1 source packages (dracut), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2010-4176
redhat medium — https://access.redhat.com/security/cve/CVE-2010-4176
ubuntu high CVE-2010-4176 high priority: Ubuntu including 1 source packages (dracut), 6 status rows across 6 suites (dapper, hardy, karmic, lucid, maverick, upstream): DNE 4, needs-triage 1, not-affected 1. https://ubuntu.com/security/CVE-2010-4176

Affected software / configurations for CVE-2010-4176

Vendor Product Version Raw CPE
dracut_project dracut — cpe:2.3:a:dracut_project:dracut:-:*:*:*:*:*:*:*
udev_project udev — cpe:2.3:a:udev_project:udev:-:*:*:*:*:*:*:*

References for CVE-2010-4176

cvelogic Threat Intelligence