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CVE-2018-14629

25
FAUCET Score

CVE-2018-14629 is a denial of service vulnerability affecting Samba's LDAP server in versions prior to 4.7.12, 4.8.7, and 4.9.3, as well as various Canonical and Debian Linux distributions. An unprivileged local attacker can exploit a CNAME loop to trigger infinite recursion, leading to a denial of service. With a CVSS score of 6.5 (Medium), this vulnerability has a network attack vector and low attack complexity, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.7.12CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.8.0, < 4.8.7CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.8.8, < 4.9.3CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.19%
Probability of exploitation in next 30 days
EPSS Percentile
91.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0519 is in the 97th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 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 Advisories (1)

redhatCVE-2018-14629Moderate

samba: Unprivileged adding of CNAME record causing loop in AD LDAP server

Nov 20, 2018

References

bugzilla.redhat.com / show_bug.cgi
ExploitIssue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/12/msg00005.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/202003-52
security.netapp.com / advisory/ntap-20181127-0001
Third Party Advisory
usn.ubuntu.com / 3827-1
Third Party Advisory
usn.ubuntu.com / 3827-2
Third Party Advisory
debian.org / security/2018/dsa-4345
Third Party Advisory
samba.org / samba/security/CVE-2018-14629.html
PatchVendor Advisory
securityfocus.com / bid/106022
Third Party AdvisoryVDB Entry