CVE-2021-20572

Name: CVE-2021-20572
Creator: NVD / NIST
Published: 2021-06-28T16:15:08.187+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 1.50%

Last modified Jun 17, 2026

CVE-2021-20572 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A remote authenticated attacker could overflow the and cause the server to crash. EPSS estimates a 1.50% chance of exploitation in the next 30 days.

Description

IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A remote authenticated attacker could overflow the and cause the server to crash. IBM X-Force ID: 199247.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

1.50%

71.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Ibm	Security Identity Manager Adapter	6.0.0.0
Ibm	Security Identity Manager Adapter	7.0.0.0

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/199247VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6465875Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/199247VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6465875Patch, Vendor Advisory

Timeline

Published: Jun 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-20572?

How severe is CVE-2021-20572?

CVE-2021-20572 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 1.50% probability of exploitation in the next 30 days.

How do I fix CVE-2021-20572?

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-2021-20572?

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

Scan your code now

Source: NVD / NIST