CVE-2020-4555

Name: CVE-2020-4555
Creator: NVD / NIST
Published: 2020-12-21T18:15:15.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.76%

Last modified Jun 17, 2026

CVE-2020-4555 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.. EPSS estimates a 0.76% chance of exploitation in the next 30 days.

Description

IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.76%

50.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-384

Affected Software

Vendor	Product	Versions
Ibm	Financial Transaction Manager	2.1.1.0
Ibm	Financial Transaction Manager	3.0.0
Ibm	Financial Transaction Manager	3.0.2
Ibm	Financial Transaction Manager	3.0.5
Ibm	Financial Transaction Manager	3.0.6
Ibm	Financial Transaction Manager	3.1.0
Ibm	Financial Transaction Manager	3.2.1
Ibm	Financial Transaction Manager	3.2.2
Ibm	Financial Transaction Manager	3.2.3
Ibm	Financial Transaction Manager	3.2.4

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/183328VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6388702Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388704Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388706Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388708Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388722Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388744Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/183328VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6388702Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388704Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388706Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388708Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388722Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6388744Patch, Vendor Advisory

Timeline

Published: Dec 21, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4555?

IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.

How severe is CVE-2020-4555?

CVE-2020-4555 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.76% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4555?

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-2020-4555?

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

Scan your code now

Source: NVD / NIST