How severe is CVE-2019-9189?

CVE-2019-9189 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-9189 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-9189?

CVE-2019-9189 affects Primasystems Flexair. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-9189?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-9189 published?

CVE-2019-9189 was published on 2019-06-05 and last updated on 2026-06-17.

CVE-2019-9189

CVE-2019-9189 is a high-severity vulnerability in Primasystems Flexair with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-434.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-434
Affected product: Primasystems Flexair
Published: 2019-06-05
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2019-9189?: 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.
How severe is CVE-2019-9189?: CVE-2019-9189 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-9189 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-9189?: CVE-2019-9189 affects Primasystems Flexair. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-9189?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-9189 published?: CVE-2019-9189 was published on 2019-06-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:primasystems:flexair:*:*:*:*:*:*:*:*

More vulnerabilities in Primasystems Flexair

CVE-2019-7668 — Critical (CVSS 9.8): Prima Systems FlexAir devices have Default Credentials.
CVE-2019-7667 — Critical (CVSS 9.8): Prima Systems FlexAir, Versions 2.3.38 and prior. The application generates database backup files with a predictable…
CVE-2019-7671 — Critical (CVSS 9.0): Prima Systems FlexAir, Versions 2.3.38 and prior. Parameters sent to scripts are not properly sanitized before being…
CVE-2019-7669 — High (CVSS 8.8): Prima Systems FlexAir, Versions 2.3.38 and prior. Improper validation of file extensions when uploading files could…
CVE-2019-7666 — High (CVSS 8.8): Prima Systems FlexAir, Versions 2.3.38 and prior. The application allows improper authentication using the MD5 hash…
CVE-2019-7281 — High (CVSS 8.8): Prima Systems FlexAir, Versions 2.3.38 and prior. An unauthenticated user can send unverified HTTP requests, which may…

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