CVE-2013-4459

Exp

LightDM 1.7.5 through 1.8.3 and 1.9.x before 1.9.2 does not apply the AppArmor profile to the Guest account, which allows local users to bypass intended restrictions by leveraging the Guest account.

Published: 2013-11-23 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4459 is rated Exploit Available (50/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.06%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2013-4459

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2013-4459

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 2025-03-17 0.04% 0.06% +0.02%
2 2023-03-07 0.95% 0.04% -0.91%
3 2022-02-04 — 0.95% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4459

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.3 2.0 LOW
AV:L/AC:M/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 3.4 4.9 [email protected]

Weakness enumeration for CVE-2013-4459

OS Trackers for CVE-2013-4459

vendor priority summary link
debian unimportant CVE-2013-4459 unimportant priority: Debian including 1 source packages (lightdm), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4459
ubuntu medium CVE-2013-4459 medium priority: Ubuntu including 1 source packages (lightdm), 6 status rows across 6 suites (lucid, precise, quantal, raring, saucy, upstream): not-affected 3, DNE 1, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2013-4459

Affected software / configurations for CVE-2013-4459

Vendor Product Version Raw CPE
robert_ancell lightdm 1.7.5 cpe:2.3:a:robert_ancell:lightdm:1.7.5:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.6 cpe:2.3:a:robert_ancell:lightdm:1.7.6:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.7 cpe:2.3:a:robert_ancell:lightdm:1.7.7:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.8 cpe:2.3:a:robert_ancell:lightdm:1.7.8:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.9 cpe:2.3:a:robert_ancell:lightdm:1.7.9:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.10 cpe:2.3:a:robert_ancell:lightdm:1.7.10:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.11 cpe:2.3:a:robert_ancell:lightdm:1.7.11:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.12 cpe:2.3:a:robert_ancell:lightdm:1.7.12:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.13 cpe:2.3:a:robert_ancell:lightdm:1.7.13:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.14 cpe:2.3:a:robert_ancell:lightdm:1.7.14:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.15 cpe:2.3:a:robert_ancell:lightdm:1.7.15:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.16 cpe:2.3:a:robert_ancell:lightdm:1.7.16:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.17 cpe:2.3:a:robert_ancell:lightdm:1.7.17:*:*:*:*:*:*:*
robert_ancell lightdm 1.7.18 cpe:2.3:a:robert_ancell:lightdm:1.7.18:*:*:*:*:*:*:*
robert_ancell lightdm 1.8.0 cpe:2.3:a:robert_ancell:lightdm:1.8.0:*:*:*:*:*:*:*
robert_ancell lightdm 1.8.1 cpe:2.3:a:robert_ancell:lightdm:1.8.1:*:*:*:*:*:*:*
robert_ancell lightdm 1.8.2 cpe:2.3:a:robert_ancell:lightdm:1.8.2:*:*:*:*:*:*:*
robert_ancell lightdm 1.8.3 cpe:2.3:a:robert_ancell:lightdm:1.8.3:*:*:*:*:*:*:*
robert_ancell lightdm 1.9.0 cpe:2.3:a:robert_ancell:lightdm:1.9.0:*:*:*:*:*:*:*
robert_ancell lightdm 1.9.1 cpe:2.3:a:robert_ancell:lightdm:1.9.1:*:*:*:*:*:*:*
canonical ubuntu_linux 13.10 cpe:2.3:o:canonical:ubuntu_linux:13.10:*:*:*:*:*:*:*

References for CVE-2013-4459

cvelogic Threat Intelligence