CVE-2021-43053

Name: CVE-2021-43053
Creator: NVD / NIST
Published: 2022-01-11T19:15:07.937+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.82%

Last modified Jun 17, 2026

CVE-2021-43053 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.82% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.82%

52.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Tibco	Ftl	<= 6.7.2

References

https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-january-11-2022-tibco-ftl-2021-43053Vendor Advisory
https://www.tibco.com/services/support/advisoriesVendor Advisory
https://www.tibco.com/support/advisories/2022/01/tibco-security-advisory-january-11-2022-tibco-ftl-2021-43053Vendor Advisory

Timeline

Published: Jan 11, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43053?

How severe is CVE-2021-43053?

CVE-2021-43053 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.82% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43053?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-43053?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST