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CVE-2019-14847

20
FAUCET Score

CVE-2019-14847 is a denial-of-service vulnerability affecting Samba versions 4.0.0 through 4.9.14 and 4.10.x through 4.10.9. An authenticated attacker can crash the Active Directory Domain Controller (AD DC) LDAP server via a dirsync request, leading to service disruption. Rated Medium severity (CVSS 4.9), this flaw requires high privileges but has low attack complexity, with no impact on confidentiality or integrity. There is currently no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, < 4.9.15CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
>= 4.10.0, < 4.10.10CPE matchmatch criteria
cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:*
29CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
30CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.35%
Probability of exploitation in next 30 days
EPSS Percentile
82.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0236 is in the 92nd percentile among its peer group of 3,566 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2019-14847Moderate

samba: samba AD DC LDAP denial of service via dirsync

Oct 29, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-11/msg00015.html
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
ExploitIssue Tracking
lists.debian.org / debian-lts-announce/2021/05/msg00023.html
lists.debian.org / debian-lts-announce/2023/09/msg00013.html
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/OKPYHDFI7HRELVXBE5J4MTGSI35AKFBI
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/XQ3IUACPZJXSC4OM6P2V4IC4QMZQZWPD
samba.org / samba/security/CVE-2019-14847.html
Vendor Advisory
synology.com / security/advisory/Synology_SA_19_35