How severe is CVE-2019-8990?

CVE-2019-8990 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-8990 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-8990?

CVE-2019-8990 affects Tibco Activematrix Businessworks. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-8990?

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-2019-8990 published?

CVE-2019-8990 was published on 2019-04-09 and last updated on 2026-06-17.

CVE-2019-8990

CVE-2019-8990 is a high-severity vulnerability in Tibco Activematrix Businessworks with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-287.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 6.8
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-287
Affected product: Tibco Activematrix Businessworks
Published: 2019-04-09
Last modified: 2026-06-17

Description

The HTTP Connector component of TIBCO Software Inc.'s TIBCO ActiveMatrix BusinessWorks contains a vulnerability that theoretically allows unauthenticated HTTP requests to be processed by the BusinessWorks engine even when authentication is required. This possibility is restricted to circumstances where HTTP "Basic Authentication" policy is used in conjunction with an XML Authentication resource. The BusinessWorks engine might instead use credentials from a prior HTTP request for authorization purposes. Affected releases are TIBCO Software Inc. TIBCO ActiveMatrix BusinessWorks: versions up to and including 6.4.2.

Frequently asked questions

What is CVE-2019-8990?: The HTTP Connector component of TIBCO Software Inc.'s TIBCO ActiveMatrix BusinessWorks contains a vulnerability that theoretically allows unauthenticated HTTP requests to be processed by the BusinessWorks engine even when authentication is required. This possibility is restricted to circumstances where HTTP "Basic Authentication" policy is used in conjunction with an XML Authentication resource. The BusinessWorks engine might instead use credentials from a prior HTTP request for authorization purposes. Affected releases are TIBCO Software Inc. TIBCO ActiveMatrix BusinessWorks: versions up to and including 6.4.2.
How severe is CVE-2019-8990?: CVE-2019-8990 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-8990 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-8990?: CVE-2019-8990 affects Tibco Activematrix Businessworks. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-8990?: 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-2019-8990 published?: CVE-2019-8990 was published on 2019-04-09 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:tibco:activematrix_businessworks:*:*:*:*:*:*:*:*

More vulnerabilities in Tibco Activematrix Businessworks

CVE-2018-12408 — High (CVSS 7.5): The BusinessWorks engine component of TIBCO Software Inc.'s TIBCO ActiveMatrix BusinessWorks, TIBCO ActiveMatrix…
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