CVE-2019-14902Network attack vector

Persisting revoked rights via incomplete ACL replication

Published Jan 21, 2020 · Updated Aug 5, 2024

Improper authorization in Samba AD DC allows remote authenticated users to retain revoked rights on replicated directory subtrees. Regular replication fails to recalculate inherited ntSecurityDescriptor ACLs on domain controllers other than the controller receiving the change. A previously delegated user or group can continue creating or modifying protected subtree objects through a controller holding the stale ACL.

CVSS severity5.4
Medium
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in Samba AD DC allows remote authenticated users to retain revoked rights on replicated directory subtrees. Regular replication fails to recalculate inherited ntSecurityDescriptor ACLs on domain controllers other than the controller receiving the change. A previously delegated user or group can continue creating or modifying protected subtree objects through a controller holding the stale ACL.

The record

CVE
CVE-2019-14902
Published
Jan 21, 2020
Updated
Aug 5, 2024
Vendor
PPP Project
Product
Samba
Classifications
T1098
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 21, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record 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=all samba 4.10.x versions before 4.10.12
  2. Affected versionversion=all samba 4.11.x versions before 4.11.5
  3. Affected versionversion=all samba 4.9.x versions before 4.9.18

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

PPP Project · Sambaversion=all samba 4.10.x versions before 4.10.12; version=all samba 4.11.x versions before 4.11.5; version=all samba 4.9.x versions before 4.9.18

Published CVSS scores

5.4Samba TeamCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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.

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

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1098Account Manipulation

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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