How severe is CVE-2019-7666?

CVE-2019-7666 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-2019-7666 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-7666?

CVE-2019-7666 affects Primasystems Flexair. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-7666?

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-2019-7666 published?

CVE-2019-7666 was published on 2019-07-01 and last updated on 2026-06-17.

CVE-2019-7666

CVE-2019-7666 is a high-severity vulnerability in Primasystems Flexair with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.5
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Primasystems Flexair
Published: 2019-07-01
Last modified: 2026-06-17

Description

Prima Systems FlexAir, Versions 2.3.38 and prior. The application allows improper authentication using the MD5 hash value of the password, which may allow an attacker with access to the database to login as admin without decrypting the password.

Frequently asked questions

What is CVE-2019-7666?: Prima Systems FlexAir, Versions 2.3.38 and prior. The application allows improper authentication using the MD5 hash value of the password, which may allow an attacker with access to the database to login as admin without decrypting the password.
How severe is CVE-2019-7666?: CVE-2019-7666 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-2019-7666 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-7666?: CVE-2019-7666 affects Primasystems Flexair. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-7666?: 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-2019-7666 published?: CVE-2019-7666 was published on 2019-07-01 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-2019-7281 — High (CVSS 8.8): Prima Systems FlexAir, Versions 2.3.38 and prior. An unauthenticated user can send unverified HTTP requests, which may…
CVE-2019-7280 — High (CVSS 8.8): Prima Systems FlexAir, Versions 2.3.38 and prior. The session-ID is of an insufficient length and can be exploited by…

All CVEs affecting Primasystems Flexair →

Other CWE-287 (Improper Authentication) vulnerabilities

CVE-2026-45480 — Critical (CVSS 10.0): Improper authentication in Azure Active Directory allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-46389 — Critical (CVSS 10.0): UDS Identity Config builds the Keycloak configuration image (realm, plugins, theme, truststore, JARs) consumed by UDS…
CVE-2026-10611 — Critical (CVSS 10.0): An authentication bypass vulnerability exists in MISP when LDAP mixed authentication is enabled with OTP enforcement.…
CVE-2026-47280 — Critical (CVSS 10.0): Improper authentication in Azure Resource Manager (ARM) allows an unauthorized attacker to elevate privileges over a…
CVE-2026-42822 — Critical (CVSS 10.0): Improper authentication in Azure Local Disconnected Operations allows an unauthorized attacker to elevate privileges…
CVE-2026-20182 — Critical (CVSS 10.0): May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and…

Browse all CWE-287 (Improper Authentication) vulnerabilities →