Read the docs
TI-2021-10409 Aliases CVE-2021-29726GHSA-r9vh-gjqp-fh37

Improper certificate validation in IBM Secure External Authentication Server

Priority LOW 26CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-295.

Summary

IBM Sterling Secure Proxy 6.0.3 and IBM Secure External Authentication Server 6.0.3 does not properly ensure that a certificate is actually associated with the host due to improper validation of certificates. IBM X-Force ID: 201104.

Why it matters now

EPSS 0.00884 59th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
IBMSecure External Authentication Server6.0.3—No fix listedCNA
IBMSterling Secure Proxy6.0.3—No fix listedCNA
  • Secure External Authentication Server VendorIBM Affected 6.0.3 Fixed in — No fix listed CNA
  • Sterling Secure Proxy VendorIBM Affected 6.0.3 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:ibm:secure_external_authentication_server:6.0.3:*:*:*:*:*:*:*6.0.3VulnerableIBM
cpe:2.3:a:ibm:sterling_secure_proxy:6.0.3:*:*:*:*:*:*:*6.0.3VulnerableIBM
  • cpe:2.3:a:ibm:secure_external_authentication_server:6.0.3:*:*:*:*:*:*:* Versions 6.0.3 Vulnerable ·IBM
  • cpe:2.3:a:ibm:sterling_secure_proxy:6.0.3:*:*:*:*:*:*:* Versions 6.0.3 Vulnerable ·IBM

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-29726
  2. 2026-10-03 Alias added: GHSA-r9vh-gjqp-fh37

References

Patch 1

Advisory 1

  • TI-2021-10408 Resource allocation without limits in IBM Secure External Authentication Server CVSS 3.1HIGH 7.5
  • TI-2021-10425 Server-side request forgery in IBM Secure Proxy CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences