CVE-2019-16353: Emerson GE Automation Proficy Machine Edition 8.0 allows an access violation and application crash via crafted

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2019-16353 is a high-severity flaw (CVSS 7.5) affecting proficy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Emerson GE Automation Proficy Machine Edition 8.0 allows an access violation and application crash via crafted traffic from a remote device, as demonstrated by an RX7i device.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Published	2019-09-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: geautomation

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

Am I affected?

Timeline

2019-09-16 14:15 UTCPublished CVE record published
2026-06-17 02:22 UTCUpdated Record last modified

geautomation proficy DOWNGRADE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 8.0 (Debian / Ubuntu)

apt-cache madison proficy sudo apt install proficy=<VERSION_BEFORE_8.0> sudo apt-mark hold proficy

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list proficy sudo dnf downgrade proficy-<VERSION_BEFORE_8.0> sudo dnf versionlock add proficy

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2019-16353?

proficy: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-16353 being exploited?

CVE-2019-16353 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-2019-16353 affect?

CVE-2019-16353 affects proficy. Severity is high (CVSS 7.5). Emerson GE Automation Proficy Machine Edition 8.0 allows an access violation and application crash via crafted traffic from a remote device, as demonstrated by an RX7i device.

How urgent is CVE-2019-16353?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2022-2791 MEDIUM 5.9 UPGRADE Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulnerable to CWE-434 Unrestricted Upload

References

← Back to latest CVEs