CVE-2019-18255: HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configura

Q: How do I fix CVE-2019-18255?

ifix: upgrade to newer than 6.1. Exact commands for each OS are on this page.

Q: Is CVE-2019-18255 being exploited?

CVE-2019-18255 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2019-18255 affect?

CVE-2019-18255 affects ifix. Severity is medium (CVSS 5.5). HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configurations through section objects. This may allow privilege escalation.

Q: How urgent is CVE-2019-18255?

Priority 22/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADE

CVE-2019-18255 is a medium-severity flaw (CVSS 5.5) affecting ifix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configurations through section objects. This may allow privilege escalation.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-732
Published	2021-02-18
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: ge

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-02-18 15:15 UTCPublished CVE record published
2026-06-17 02:24 UTCUpdated Record last modified

ge ifix UPGRADE

Affected: <= 6.1

Fixed in: newer than 6.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy ifix || rpm -q ifix || ifix --version

2. UPGRADE to newer than 6.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade ifix

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade ifix

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-18255?

ifix: upgrade to newer than 6.1. Exact commands for each OS are on this page.

Is CVE-2019-18255 being exploited?

CVE-2019-18255 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-18255 affect?

CVE-2019-18255 affects ifix. Severity is medium (CVSS 5.5). HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configurations through section objects. This may allow privilege escalation.

How urgent is CVE-2019-18255?

Priority 22/100. No elevated risk signals yet.

Related CVEs

CVE-2023-0598 HIGH 7.8 DOWNGRADE GE Digital Proficy iFIX 2022, GE Digital Proficy iFIX v6.1, and GE Digital Proficy iFIX v6.5 are vulnerable t
CVE-2019-18243 MEDIUM 5.5 UPGRADE HMI/SCADA iFIX (Versions 6.1 and prior) allows a local authenticated user to modify system-wide iFIX configura
CVE-2018-17925 MEDIUM 4.8 UPGRADE Multiple instances of this vulnerability (Unsafe ActiveX Control Marked Safe For Scripting) have been identifi
CVE-2016-9360 MEDIUM 6.7 UPGRADE UPGRADE An issue was discovered in General Electric (GE) Proficy HMI/SCADA iFIX Version 5.8 SIM 13 and prior versions,

References

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