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CVE-2018-14648

27
FAUCET Score

CVE-2018-14648 describes a denial-of-service vulnerability in 389 Directory Server, affecting various Debian, Fedora, and Red Hat distributions. An unauthenticated attacker can exploit this flaw by sending a specially crafted search query, causing excessive CPU consumption in the do_search() function. This vulnerability has a CVSS v3 score of 7.5 (High), indicating a network-based attack with low complexity and high availability impact. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.0.17CPE matchmatch criteria
cpe:2.3:a:fedoraproject:389_directory_server:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
6.29%
Probability of exploitation in next 30 days
EPSS Percentile
92.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0629 is in the 88th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: 389-ds-base-0:1.3.8.4-15.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7.5 Extended Update SupportFixed in: 389-ds-base-0:1.3.7.5-29.el7_5
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: 389-ds-base

Vendor Advisories (1)

redhatCVE-2018-14648Moderate

389-ds-base: Mishandled search requests in servers/slapd/search.c:do_search() allows for denial of service

Sep 21, 2018

References

access.redhat.com / errata/RHSA-2018:3127
Third Party Advisory
access.redhat.com / errata/RHSA-2018:3507
Issue TrackingThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Third Party Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00015.html
Third Party Advisory