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CVE-2018-10850

20
FAUCET Score

CVE-2018-10850 describes a race condition vulnerability in 389-ds-base versions prior to 1.4.0.10 and 1.3.8.3, affecting products like Debian, Fedora, and Red Hat. This flaw allows an unauthenticated attacker to trigger a denial of service by exploiting how persistent searches are handled under server load. The vulnerability has a CVSS score of 5.9 (Medium), indicating a network attack vector with high attack complexity and high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.4.0.10CPE 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:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.9MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.57%
Probability of exploitation in next 30 days
EPSS Percentile
72.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0157 is in the 48th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: 389-ds-base-0:1.3.7.5-28.el7_5
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: 389-ds-base

Vendor Advisories (1)

redhatCVE-2018-10850Moderate

389-ds-base: race condition on reference counter leads to DoS using persistent search

Jun 6, 2018

References

lists.opensuse.org / opensuse-security-announce/2019-05/msg00033.html
access.redhat.com / errata/RHSA-2018:2757
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
lists.debian.org / debian-lts-announce/2018/07/msg00018.html
Third Party Advisory
pagure.io / 389-ds-base/c/8f04487f99a
PatchThird Party Advisory
pagure.io / 389-ds-base/issue/49768
Issue TrackingThird Party Advisory