CVE-2019-10127

Local code execution via inherited directory ACLs

Published Mar 19, 2021 · Updated Aug 4, 2024

Improper access control in BigSQL's PostgreSQL 11 before 11.3 allows local users to read or delete database files via inherited ACLs. The BigSQL Windows installer preserves inherited ACLs on the binary and data directories instead of restricting them to trusted users. A Windows account alone permits file reads and deletions; adding an unprivileged PostgreSQL account permits code execution as the service account.

CVSS severity7.0
High
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in BigSQL's PostgreSQL 11 before 11.3 allows local users to read or delete database files via inherited ACLs. The BigSQL Windows installer preserves inherited ACLs on the binary and data directories instead of restricting them to trusted users. A Windows account alone permits file reads and deletions; adding an unprivileged PostgreSQL account permits code execution as the service account.

The record

CVE
CVE-2019-10127
Published
Mar 19, 2021
Updated
Aug 4, 2024
Vendor
PostgreSQL Global Development Group
Product
PostgreSQL
Classifications
CWE-284, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 19, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=11.x prior to 11.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

PostgreSQL Global Development Group · PostgreSQLversion=11.x prior to 11.3

Published CVSS scores

7.0PostgreSQL Global Development GroupCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8NIST National Vulnerability DatabaseCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
4.3NIST National Vulnerability DatabaseAV:L/AC:L/Au:S/C:P/I:P/A:P

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1574.010Services File Permissions Weakness

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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