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CVE-2013-4475

16
FAUCET Score

CVE-2013-4475 describes a vulnerability in Samba versions 3.2.x through 3.6.x, 4.0.x, and 4.1.x, specifically when vfs_streams_depot or vfs_streams_xattr are enabled. This flaw allows remote attackers to bypass file restrictions by exploiting differences in Access Control Lists (ACLs) between a file and its associated alternate data stream. With a CVSS score of 4.0 (AV:N/AC:H/Au:N/C:P/I:P/A:N), this vulnerability has a network attack vector, high attack complexity, and could lead to partial confidentiality and integrity compromise. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage, indicating a low current threat level.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.2.0, < 3.6.20CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.0.0, < 4.0.11CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:samba:samba:4.1.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.0MEDIUM

AV:N/AC:H/Au:N/C:P/I:P/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Exploitability Score
4.9
Impact Score
4.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.02%
Probability of exploitation in next 30 days
EPSS Percentile
94.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0902 is in the 94th percentile among its peer group of 19,956 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: samba3x-0:3.6.6-0.138.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba-0:3.6.9-167.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Storage 2.1Fixed in: samba-0:3.6.9-167.5.1.el6rhs
View patch

Vendor Advisories (1)

redhatCVE-2013-4475Moderate

samba: no access check verification on stream files

Oct 25, 2013

References

lists.fedoraproject.org / pipermail/package-announce/2014-August/136864.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2014-01/msg00002.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-11/msg00083.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-11/msg00115.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-11/msg00117.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-updates/2013-12/msg00088.html
Mailing ListThird Party Advisory
rhn.redhat.com / errata/RHSA-2013-1806.html
Third Party Advisory
rhn.redhat.com / errata/RHSA-2014-0009.html
Third Party Advisory
blogs.oracle.com / sunsecurity/entry/cve_2013_4475_access_control
Third Party Advisory
secunia.com / advisories/56508
Third Party Advisory
security.gentoo.org / glsa/glsa-201502-15.xml
Third Party Advisory
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
Third Party Advisory
debian.org / security/2013/dsa-2812
Third Party Advisory
samba.org / samba/history/samba-3.6.20.html
Vendor Advisory
samba.org / samba/history/samba-4.0.11.html
Vendor Advisory
samba.org / samba/history/samba-4.1.1.html
Vendor Advisory
samba.org / samba/security/CVE-2013-4475
Vendor Advisory
securityfocus.com / bid/63646
Third Party AdvisoryVDB Entry
ubuntu.com / usn/USN-2054-1
Third Party Advisory