CVE-2021-43053

CVE-2021-43053 is a high-severity vulnerability in Tibco Ftl with a CVSS 3.x base score of 8.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

The Realm Server component of TIBCO Software Inc.'s TIBCO FTL - Community Edition, TIBCO FTL - Developer Edition, and TIBCO FTL - Enterprise Edition contains a difficult to exploit vulnerability that allows an unauthenticated attacker with network access to obtain the cluster secret of another application connected to the realm server. Affected releases are TIBCO Software Inc.'s TIBCO FTL - Community Edition: versions 6.7.2 and below, TIBCO FTL - Developer Edition: versions 6.7.2 and below, and TIBCO FTL - Enterprise Edition: versions 6.7.2 and below.

Frequently asked questions

What is CVE-2021-43053?
The Realm Server component of TIBCO Software Inc.'s TIBCO FTL - Community Edition, TIBCO FTL - Developer Edition, and TIBCO FTL - Enterprise Edition contains a difficult to exploit vulnerability that allows an unauthenticated attacker with network access to obtain the cluster secret of another application connected to the realm server. Affected releases are TIBCO Software Inc.'s TIBCO FTL - Community Edition: versions 6.7.2 and below, TIBCO FTL - Developer Edition: versions 6.7.2 and below, and TIBCO FTL - Enterprise Edition: versions 6.7.2 and below.
How severe is CVE-2021-43053?
CVE-2021-43053 has a CVSS 3.x base score of 8.5, 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 low, and availability none.
Is CVE-2021-43053 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43053?
CVE-2021-43053 primarily affects Tibco Ftl. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-43053?
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-2021-43053 published?
CVE-2021-43053 was published on 2022-01-11 and last updated on 2026-06-17.

References

Affected products (3)

More vulnerabilities in Tibco Ftl

All CVEs affecting Tibco Ftl →