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CVE-2014-3493

13
FAUCET Score

CVE-2014-3493 describes a denial-of-service vulnerability in Samba versions 3.6.x, 4.0.x, and 4.1.x. Authenticated remote users can trigger a daemon crash and memory corruption by attempting to read a Unicode pathname without specifying Unicode usage, leading to a character-set conversion failure and an invalid pointer dereference. The vulnerability has a low CVSS score of 2.7, indicating a low severity with an adjacent network attack vector, low complexity, and partial availability impact. There is no known active exploitation, public exploit code, or Metasploit/Nuclei modules, though it did receive some media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.6.0CPE matchmatch criteria
cpe:2.3:a:samba:samba:3.6.0:*:*:*:*:*:*:*
3.6.1CPE matchmatch criteria
cpe:2.3:a:samba:samba:3.6.1:*:*:*:*:*:*:*
3.6.2CPE matchmatch criteria
cpe:2.3:a:samba:samba:3.6.2:*:*:*:*:*:*:*
3.6.3CPE matchmatch criteria
cpe:2.3:a:samba:samba:3.6.3:*:*:*:*:*:*:*
3.6.4CPE matchmatch criteria
cpe:2.3:a:samba:samba:3.6.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.7LOW

AV:A/AC:L/Au:S/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
ADJACENT_NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
5.1
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
7.27%
Probability of exploitation in next 30 days
EPSS Percentile
93.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0727 is in the 100th percentile among its peer group of 85 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 0.0 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: samba3x-0:3.6.6-0.140.el5_10
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba-0:3.6.9-169.el6_5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba4-0:4.0.0-63.el6_5.rc4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: samba-0:4.1.1-35.el7_0
View patch
redhatno patchvia redhat_api
Product: Red Hat Storage 2.1Fixed in: samba

Vendor Advisories (1)

redhatCVE-2014-3493Low

samba: smbd unicode path names denial of service

Jun 23, 2014

References

advisories.mageia.org / MGASA-2014-0279.html
linux.oracle.com / errata/ELSA-2014-0866.html
lists.fedoraproject.org / pipermail/package-announce/2014-August/136864.html
lists.fedoraproject.org / pipermail/package-announce/2014-June/134717.html
rhn.redhat.com / errata/RHSA-2014-0866.html
blogs.oracle.com / sunsecurity/entry/multiple_vulnerabilities_in_samba1
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/59378
secunia.com / advisories/59407
secunia.com / advisories/59433
secunia.com / advisories/59579
secunia.com / advisories/59834
secunia.com / advisories/59848
secunia.com / advisories/59919
secunia.com / advisories/61218
security.gentoo.org / glsa/glsa-201502-15.xml
h20566.www2.hpe.com / portal/site/hpsc/public/kb/docDisplay
mandriva.com / security/advisories
mandriva.com / security/advisories
samba.org / samba/security/CVE-2014-3493
Vendor Advisory
securityfocus.com / archive/1/532757/100/0/threaded
securityfocus.com / bid/68150
securitytracker.com / id/1030455