Prima Systems FlexAir, Versions 2.3.38 and prior.

published 2019-07-01 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16824

cvss: 8.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

Prima Systems FlexAir, Versions 2.3.38 and prior. The session-ID is of an insufficient length and can be exploited by brute force, which may allow a remote attacker to obtain a valid session and bypass authentication.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-211-02 updated 2019-07-30 cvss 4.3

Prima Systems FlexAir

Prima Systems Prima FlexAir <= 2.3.38
affected: mitigation “Prima Systems has released Version 2.5.12 to fix these issues.”

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N

Classification

Weakness

CWE-613 DEPRECATED: Insufficient Session Expiration

References

applied-risk.com /labs/advisories
not-applicable, third-party-advisory
applied-risk.com /resources/ar-2019-007
third-party-advisory
us-cert.gov /ics/advisories/icsa-19-211-02
third-party-advisory, us-government-resource

Sources

CVE List CVE-2019-7280
NVD CVE-2019-7280

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary