CVE-2013-6409

Debian adequate before 0.8.1, when run by root with the --user option, allows local users to hijack the tty and possibly gain privileges via the TIOCSTI ioctl.

Published: 2013-12-07 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-6409 is rated Low Risk (29/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.05%). 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-2013-6409

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 2025-03-30 0.05% 0.05% -0.00%
2 2025-03-29 0.04% 0.05% +0.01%
3 2023-03-07 — 0.04% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-6409

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.2 2.0 MEDIUM
AV:L/AC:H/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:H)
Exploitation requires uncommon or highly specific conditions.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 1.9 10.0 [email protected]

Weakness enumeration for CVE-2013-6409

OS Trackers for CVE-2013-6409

vendor priority summary link
debian not yet assigned CVE-2013-6409 not yet assigned priority: Debian including 1 source packages (adequate), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-6409
ubuntu medium CVE-2013-6409 medium priority: Ubuntu including 1 source packages (adequate), 7 status rows across 7 suites (lucid, precise, quantal, raring, saucy, trusty, upstream): DNE 4, ignored 2, released 1. https://ubuntu.com/security/CVE-2013-6409

Affected software / configurations for CVE-2013-6409

Vendor Product Version Raw CPE
debian adequate <= 0.8 cpe:2.3:a:debian:adequate:*:*:*:*:*:*:*:*
debian adequate 0.1 cpe:2.3:a:debian:adequate:0.1:*:*:*:*:*:*:*
debian adequate 0.1.1 cpe:2.3:a:debian:adequate:0.1.1:*:*:*:*:*:*:*
debian adequate 0.2 cpe:2.3:a:debian:adequate:0.2:*:*:*:*:*:*:*
debian adequate 0.2.1 cpe:2.3:a:debian:adequate:0.2.1:*:*:*:*:*:*:*
debian adequate 0.3.1 cpe:2.3:a:debian:adequate:0.3.1:*:*:*:*:*:*:*
debian adequate 0.4 cpe:2.3:a:debian:adequate:0.4:*:*:*:*:*:*:*
debian adequate 0.4.1 cpe:2.3:a:debian:adequate:0.4.1:*:*:*:*:*:*:*
debian adequate 0.4.2 cpe:2.3:a:debian:adequate:0.4.2:*:*:*:*:*:*:*
debian adequate 0.4.3 cpe:2.3:a:debian:adequate:0.4.3:*:*:*:*:*:*:*
debian adequate 0.4.4 cpe:2.3:a:debian:adequate:0.4.4:*:*:*:*:*:*:*
debian adequate 0.5 cpe:2.3:a:debian:adequate:0.5:*:*:*:*:*:*:*
debian adequate 0.5.1 cpe:2.3:a:debian:adequate:0.5.1:*:*:*:*:*:*:*
debian adequate 0.5.2 cpe:2.3:a:debian:adequate:0.5.2:*:*:*:*:*:*:*
debian adequate 0.5.3 cpe:2.3:a:debian:adequate:0.5.3:*:*:*:*:*:*:*
debian adequate 0.6 cpe:2.3:a:debian:adequate:0.6:*:*:*:*:*:*:*
debian adequate 0.7 cpe:2.3:a:debian:adequate:0.7:*:*:*:*:*:*:*
debian adequate 0.7.1 cpe:2.3:a:debian:adequate:0.7.1:*:*:*:*:*:*:*

References for CVE-2013-6409

cvelogic Threat Intelligence