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Fencer Vulns
high 8.3

CVE-2021-38121 json

Weak communication protocol identified in Advance Authentication client application

published 2024-08-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24594

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 7%
public exploits
0
none known

Summary

Insufficient or weak TLS protocol version identified in Advance authentication client server communication when specific service is accessed between devices.  This issue affects NetIQ Advance Authentication versions before 6.3.5.1

Patch / fix

  • microfocus netiq_advanced_authentication 6.3.5.1

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.18% chance of exploitation in the next 30 days, higher than 7% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:L
NVD 3.1 8.8 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • OpenText NetIQ Advance Authentication
  • microfocus netiq_advanced_authentication

Classification

Weakness
  • CWE-326 Inadequate Encryption Strength

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.