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CVE-2017-12163

25
FAUCET Score

CVE-2017-12163 describes an information leak vulnerability in Samba's SMB1 protocol implementation, affecting versions before 4.4.16, 4.5.14, and 4.6.8 across Debian, Red Hat, and Samba products. This flaw allows a malicious client to dump server memory contents to a file or shared printer, though the attacker cannot control the specific memory area. Rated 7.1 HIGH (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N), it has a low attack complexity and no required privileges, leading to high confidentiality impact and low integrity impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage for this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.16CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.5.0, < 4.5.14CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.6.0, < 4.6.8CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.1MEDIUM

CVSS:3.0/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.5
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
7.59%
Probability of exploitation in next 30 days
EPSS Percentile
93.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0759 is in the 96th percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: samba-0:4.6.2-11.el7_4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba-0:3.6.23-45.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: samba4-0:4.2.10-11.el6_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.3 for RHEL 6Fixed in: samba-0:4.6.3-6.el6rhs
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Gluster Storage 3.3 for RHEL 7Fixed in: samba-0:4.6.3-6.el7rhgs
View patch
redhatworkaround availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: samba

Vendor Advisories (1)

redhatCVE-2017-12163Moderate

Samba: Server memory information leak over SMB1

Sep 20, 2017

References

access.redhat.com / errata/RHSA-2017:2789
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2790
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2791
Third Party Advisory
access.redhat.com / errata/RHSA-2017:2858
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingMitigationThird Party Advisory
h20566.www2.hpe.com / hpsc/doc/public/display
Third Party Advisory
security.netapp.com / advisory/ntap-20170921-0001
Third Party Advisory
support.hpe.com / hpsc/doc/public/display
Third Party Advisory
debian.org / security/2017/dsa-3983
Third Party Advisory
samba.org / samba/security/CVE-2017-12163.html
PatchVendor Advisory
synology.com / support/security/Synology_SA_17_57_Samba
MitigationThird Party Advisory
securityfocus.com / bid/100925
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039401
Third Party AdvisoryVDB Entry