CVE-2021-29728

Name: CVE-2021-29728
Creator: NVD / NIST
Published: 2021-08-30T17:15:07.52+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.9/10EPSS 0.99%

Last modified Jun 17, 2026

CVE-2021-29728 is a medium-severity vulnerability rated 4.9/10 on the CVSS scale. IBM Sterling Secure Proxy 6.0.1, 6.0.2, 2.4.3.2, and 3.4.3.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. IBM X-Force ID: 201160.. EPSS estimates a 0.99% chance of exploitation in the next 30 days.

Description

IBM Sterling Secure Proxy 6.0.1, 6.0.2, 2.4.3.2, and 3.4.3.2 contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. IBM X-Force ID: 201160.

Metrics

CVSS 3.1

4.9/10

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

EPSS Probability

0.99%

58.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-798

Affected Software

Vendor	Product	Versions
Ibm	Sterling External Authentication Server	2.4.3.2
Ibm	Sterling External Authentication Server	6.0.1.0
Ibm	Sterling External Authentication Server	6.0.2.0
Ibm	Sterling Secure Proxy	3.4.3.2
Ibm	Sterling Secure Proxy	6.0.1
Ibm	Sterling Secure Proxy	6.0.2

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/201160VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6484681Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6484685Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/201160VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6484681Patch, Vendor Advisory
https://www.ibm.com/support/pages/node/6484685Patch, Vendor Advisory

Timeline

Published: Aug 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-29728?

How severe is CVE-2021-29728?

CVE-2021-29728 has a CVSS score of 4.9/10 (MEDIUM severity). The EPSS model estimates a 0.99% probability of exploitation in the next 30 days.

How do I fix CVE-2021-29728?

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-2021-29728?

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

Scan your code now

Source: NVD / NIST