CVE-2013-4476

Samba 4.0.x before 4.0.11 and 4.1.x before 4.1.1, when LDAP or HTTP is provided over SSL, uses world-readable permissions for a private key, which allows local users to obtain sensitive information by reading the key file, as demonstrated by access to the local filesystem on an AD domain controller.

Published: 2013-11-13 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4476 is rated Low Risk (17.1/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.43%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

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-2013-4476

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 0.23% 0.43% +0.21%
2 2025-03-30 0.30% 0.23% -0.07%
3 2025-03-29 — 0.30% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4476

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
1.2 2.0 LOW
AV:L/AC:H/Au:N/C:P/I:N/A:N 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:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 1.9 2.9 [email protected]

Weakness enumeration for CVE-2013-4476

OS Trackers for CVE-2013-4476

vendor priority summary link
debian low CVE-2013-4476 low priority: Debian including 1 source packages (samba), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2013-4476
gentoo high CVE-2013-4476: 1 GLSA(s) (201502-15), 1 atom(s) (net-fs/samba); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-4476
redhat medium — https://access.redhat.com/security/cve/CVE-2013-4476
suse low CVE-2013-4476 severity low: SUSE including 523 source package names (ctdb-4.10.5+git.129.35f7bb6e177-1.1, ctdb-4.22.3+git.401.c70158430cc-160000.2.2, …), 868 product×package rows across 26 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (26 product lines)): Fixed 868. https://www.suse.com/security/cve/CVE-2013-4476/
ubuntu medium CVE-2013-4476 medium priority: Ubuntu including 2 source packages (samba, samba4), 26 status rows across 13 suites (lucid, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): not-affected 13, DNE 7, ignored 5, released 1. https://ubuntu.com/security/CVE-2013-4476

Affected software / configurations for CVE-2013-4476

Vendor Product Version Raw CPE
samba samba 4.0.0 cpe:2.3:a:samba:samba:4.0.0:*:*:*:*:*:*:*
samba samba 4.0.1 cpe:2.3:a:samba:samba:4.0.1:*:*:*:*:*:*:*
samba samba 4.0.2 cpe:2.3:a:samba:samba:4.0.2:*:*:*:*:*:*:*
samba samba 4.0.3 cpe:2.3:a:samba:samba:4.0.3:*:*:*:*:*:*:*
samba samba 4.0.4 cpe:2.3:a:samba:samba:4.0.4:*:*:*:*:*:*:*
samba samba 4.0.5 cpe:2.3:a:samba:samba:4.0.5:*:*:*:*:*:*:*
samba samba 4.0.6 cpe:2.3:a:samba:samba:4.0.6:*:*:*:*:*:*:*
samba samba 4.0.7 cpe:2.3:a:samba:samba:4.0.7:*:*:*:*:*:*:*
samba samba 4.0.8 cpe:2.3:a:samba:samba:4.0.8:*:*:*:*:*:*:*
samba samba 4.0.9 cpe:2.3:a:samba:samba:4.0.9:*:*:*:*:*:*:*
samba samba 4.0.10 cpe:2.3:a:samba:samba:4.0.10:*:*:*:*:*:*:*
samba samba 4.1.0 cpe:2.3:a:samba:samba:4.1.0:*:*:*:*:*:*:*

References for CVE-2013-4476

cvelogic Threat Intelligence