CVE-2023-0922Network attack vector

Password disclosure via signed-only LDAP connections

Published Apr 3, 2023 · Updated Feb 13, 2025

Cleartext transmission in Samba before 4.16.10, 4.17.7, and 4.18.1 allows attackers to obtain new or reset passwords. samba-tool permits password-setting operations over remote LDAP connections protected for integrity but not confidentiality because client ldap sasl wrapping defaults to sign. Exposure requires a Kerberos-protected remote LDAP operation and an attacker able to observe its traffic; NTLM-protected connections receive encryption.

CVSS severity5.9
Medium
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in Samba before 4.16.10, 4.17.7, and 4.18.1 allows attackers to obtain new or reset passwords. samba-tool permits password-setting operations over remote LDAP connections protected for integrity but not confidentiality because client ldap sasl wrapping defaults to sign. Exposure requires a Kerberos-protected remote LDAP operation and an attacker able to observe its traffic; NTLM-protected connections receive encryption.

The record

CVE
CVE-2023-0922
Published
Apr 3, 2023
Updated
Feb 13, 2025
Vendor
PPP Project
Product
Samba
Classifications
CWE-319, T1040
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 3, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=samba 4.18.1, samba 4.17.7, samba 4.16.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

PPP Project · Sambaversion=samba 4.18.1, samba 4.17.7, samba 4.16.10

Published CVSS scores

5.9Samba TeamCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N
5.9NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

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 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

CWE-319Cleartext Transmission of Sensitive Information
T1040Network Sniffing

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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