CVE-2019-9189: Prima Systems FlexAir, Versions 2.4.9api3 and prior

Q: How do I fix CVE-2019-9189?

flexair: upgrade to newer than 2.3.38. Exact commands for each OS are on this page.

Q: Is CVE-2019-9189 being exploited?

CVE-2019-9189 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-2019-9189 affect?

CVE-2019-9189 affects flexair. Severity is high (CVSS 8.8). Prima Systems FlexAir, Versions 2.4.9api3 and prior. The application allows the upload of arbitrary Python scripts when configuring the main central controller. These scripts can be immediately executed because of root code execution, not a

Q: How urgent is CVE-2019-9189?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

This week

HIGH 8.8UPGRADE

CVE-2019-9189 is a high-severity flaw (CVSS 8.8) affecting flexair. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Prima Systems FlexAir, Versions 2.4.9api3 and prior. The application allows the upload of arbitrary Python scripts when configuring the main central controller. These scripts can be immediately executed because of root code execution, not as a web server user, allowing an authenticated attacker to gain full system access.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	11.4% (top 4%)
CISA exploited list	No
Weakness	CWE-434
Published	2019-06-05
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: primasystems

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

Am I affected?

Timeline

2019-06-05 18:29 UTCPublished CVE record published
2026-06-17 02:43 UTCUpdated Record last modified

primasystems flexair UPGRADE

Affected: <= 2.3.38

Fixed in: newer than 2.3.38

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.3.38 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flexair

Note

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

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Prima Access Control 2.3.35 - Arbitrary File Upload

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-2019-9189?

flexair: upgrade to newer than 2.3.38. Exact commands for each OS are on this page.

Is CVE-2019-9189 being exploited?

CVE-2019-9189 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-2019-9189 affect?

CVE-2019-9189 affects flexair. Severity is high (CVSS 8.8). Prima Systems FlexAir, Versions 2.4.9api3 and prior. The application allows the upload of arbitrary Python scripts when configuring the main central controller. These scripts can be immediately executed because of root code execution, not a

How urgent is CVE-2019-9189?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

Python vulnerabilities

Related CVEs

CVE-2019-7672 HIGH 8.8 UPGRADE Prima Systems FlexAir, Versions 2.3.38 and prior
CVE-2019-7671 CRITICAL 9.0 UPGRADE Prima Systems FlexAir, Versions 2.3.38 and prior
CVE-2019-7670 HIGH 7.2 UPGRADE Prima Systems FlexAir, Versions 2.3.38 and prior
CVE-2019-7669 HIGH 8.8 UPGRADE Prima Systems FlexAir, Versions 2.3.38 and prior
CVE-2019-7668 CRITICAL 9.8 UPGRADE Prima Systems FlexAir devices have Default Credentials.

References

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