CVE-2019-18243

Local privilege escalation via writable registry configuration

Published Feb 18, 2021 · Updated Aug 5, 2024

Incorrect registry permissions in GE Digital Proficy iFIX 6.1 and earlier allow local users to elevate privileges. System-wide iFIX configuration keys in the Windows registry assign write permission to authenticated non-administrators, allowing protected application settings to be changed. An attacker must already hold an authenticated local session; the bounded consequences are unauthorized configuration changes and privilege escalation.

CVSS severity5.5
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect registry permissions in GE Digital Proficy iFIX 6.1 and earlier allow local users to elevate privileges. System-wide iFIX configuration keys in the Windows registry assign write permission to authenticated non-administrators, allowing protected application settings to be changed. An attacker must already hold an authenticated local session; the bounded consequences are unauthorized configuration changes and privilege escalation.

The record

CVE
CVE-2019-18243
Published
Feb 18, 2021
Updated
Aug 5, 2024
Vendor
GE Digital
Product
Proficy iFIX
Classifications
CWE-732, T1112
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 18, 2021CVE 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=Versions 6.1 and prior

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

GE Digital · Proficy iFIXversion=Versions 6.1 and prior

Published CVSS scores

2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.1JVNCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1112Modify Registry

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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