CVE-2021-29728

mediumpriority · track · 20OT risk · elevatedEPSS 0.010 · 62 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.99% (62nd) EPSS

CVSS 4 · medium

Is it mine?

10 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

4.9

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 1.2 · impact 3.6

v3.04.9mediumCVSS:3.0/S:U/I:N/C:H/PR:H/A:N/AV:N/AC:L/UI:N/E:U/RC:C/RL:Osecondary · ENISA EU

v3.04.9mediumCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Nsecondary · psirt@us.ibm.com USexploitability 1.2 · impact 3.6

v3.14.5mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-798USprimary

affected products (10)

Products and version ranges known to be affected.

IBM Sterling Secure Proxy≤ 3.4.3.2enisa_euvdEU
IBM Sterling Secure Proxy≤ 2.4.3.2enisa_euvdEU
IBM Sterling Secure Proxy≤ 6.0.1enisa_euvdEU
IBM Sterling Secure Proxy≤ 6.0.2enisa_euvdEU
ibm sterling external authentication server= 2.4.3.2nvdUScpe:2.3:a:ibm:sterling_external_authentication_server:*:*:*:*:*:*:*:*
ibm sterling external authentication server= 6.0.1.0nvdUScpe:2.3:a:ibm:sterling_external_authentication_server:*:*:*:*:*:*:*:*
ibm sterling external authentication server= 6.0.2.0nvdUScpe:2.3:a:ibm:sterling_external_authentication_server:*:*:*:*:*:*:*:*
ibm sterling secure proxy= 3.4.3.2nvdUScpe:2.3:a:ibm:sterling_secure_proxy:*:*:*:*:*:*:*:*
ibm sterling secure proxy= 6.0.1nvdUScpe:2.3:a:ibm:sterling_secure_proxy:*:*:*:*:*:*:*:*
ibm sterling secure proxy= 6.0.2nvdUScpe:2.3:a:ibm:sterling_secure_proxy:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-08-30modified 2026-06-17

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Related entries.

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+2276 more

references (10)

External citations — patches, advisories, analysis.

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