CVE-2022-47581Network attack vector

Unauthenticated server crash via LDAPv1 bind request

Published Dec 21, 2022 · Updated Apr 16, 2025

Denial of service in Isode M-Vault 16.0v0 through 17.0v23 allows remote attackers to crash the server via an LDAPv1 bind request. The LDAP bind-processing path fails on a version 1 bind request, but Isode has not disclosed the underlying parsing or state-handling error. An unauthenticated network client that can reach the LDAP service can terminate the directory server, interrupting availability without reported data disclosure or modification.

CVSS severity7.5
High
EPSS probability0.62%
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 Isode M-Vault 16.0v0 through 17.0v23 allows remote attackers to crash the server via an LDAPv1 bind request. The LDAP bind-processing path fails on a version 1 bind request, but Isode has not disclosed the underlying parsing or state-handling error. An unauthenticated network client that can reach the LDAP service can terminate the directory server, interrupting availability without reported data disclosure or modification.

The record

CVE
CVE-2022-47581
Published
Dec 21, 2022
Updated
Apr 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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