CVE-2022-0918Network attack vector

Unauthenticated service crash via crafted LDAP message

Published Mar 16, 2022 · Updated Nov 3, 2025

Denial of service in 389 Directory Server 1.4 allows remote attackers to crash slapd with one crafted LDAP message. The public upstream report identifies only crafted request parameters; it does not disclose the parser or invalid operation that causes the segmentation fault. Network access to the LDAP port is sufficient; no bind or other authentication is required, and successful exploitation interrupts the directory service.

CVSS severityUnavailable
Unscored
EPSS probability5.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in 389 Directory Server 1.4 allows remote attackers to crash slapd with one crafted LDAP message. The public upstream report identifies only crafted request parameters; it does not disclose the parser or invalid operation that causes the segmentation fault. Network access to the LDAP port is sufficient; no bind or other authentication is required, and successful exploitation interrupts the directory service.

The record

CVE
CVE-2022-0918
Published
Mar 16, 2022
Updated
Nov 3, 2025
Vendor
389 Directory Server
Product
389 Directory Server
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 16, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=1.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

389 Directory Server · 389 Directory Serverversion=1.4

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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