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No exploitation reportedFix available

CVE-2018-1089

No exploitation reported by the sources we read.

  • Published2018-05-09
  • Fixed in1.4.0.9 · 1.3.6.15
  • WeaknessCWE-119 · CWE-122

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

389-ds-base before versions 1.4.0.9, 1.3.8.1, 1.3.6.15 did not properly handle long search filters with characters needing escapes, possibly leading to buffer overflows. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.

Timeline

dates in UTC
  1. 2018-05-0915:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2018-1089?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2018-1089?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Fedoraproject 389 directory server
BranchAffectedFixed in
1.4≥ 1.4.0.0, < 1.4.0.91.4.0.9
1.3≥ 1.3.6.0, < 1.3.6.151.3.6.15
1.3= 1.3.8.1no fix published
1.3= 1.3.8.2no fix published
Redhat enterprise linux desktop
BranchAffectedFixed in
6.0= 6.0no fix published
7.0= 7.0no fix published
Redhat enterprise linux server
BranchAffectedFixed in
6.0= 6.0no fix published
7.0= 7.0no fix published

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

  1. Update Fedoraproject 389 directory server to 1.4.0.9 · 1.3.6.15

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.07.5read 2026-10-23
  • NVDCVSS 3.07.5read 2026-10-23
  • NVDCVSS 2.05read 2026-10-23
  • CNAweakness (CWE)CWE-122read 2026-10-23
  • NVDweakness (CWE)CWE-119read 2026-10-23
  • FIRST EPSSEPSS score4.0 %2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2018-05-09
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2018-1089?

389-ds-base before versions 1.4.0.9, 1.3.8.1, 1.3.6.15 did not properly handle long search filters with characters needing escapes, possibly leading to buffer overflows. A remote, unauthenticated attacker could potentially use this flaw to make ns-slapd crash via a specially crafted LDAP request, thus resulting in denial of service.

Is CVE-2018-1089 actively exploited?

Active exploitation of CVE-2018-1089 has not been confirmed. Its EPSS score was 4.0% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-1089?

CVE-2018-1089 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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