CVE-2021-20372

Name: CVE-2021-20372
Creator: NVD / NIST
Published: 2021-10-07T18:15:07.823+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 1.21%

Last modified Jun 17, 2026

CVE-2021-20372 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow a remote authenticated user to cause a denial of another user's service due to insufficient permission checking. IBM X-Force ID: 195518.. EPSS estimates a 1.21% chance of exploitation in the next 30 days.

Description

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow a remote authenticated user to cause a denial of another user's service due to insufficient permission checking. IBM X-Force ID: 195518.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

1.21%

64.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Ibm	Sterling B2b Integrator	>= 2.2.0.0, <= 5.2.6.5_3
Ibm	Sterling B2b Integrator	>= 6.0.0.0, <= 6.0.0.6
Ibm	Sterling B2b Integrator	>= 6.0.1.0, <= 6.0.3.4
Ibm	Sterling B2b Integrator	>= 6.1.0.0, <= 6.1.0.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/195518VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6496805Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/195518VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6496805Patch, Vendor Advisory

Timeline

Published: Oct 7, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20372?

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow a remote authenticated user to cause a denial of another user's service due to insufficient permission checking. IBM X-Force ID: 195518.

How severe is CVE-2021-20372?

CVE-2021-20372 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 1.21% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20372?

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-2021-20372?

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

Scan your code now

Source: NVD / NIST