CVE-2021-38121

Weak communication protocol identified in Advance Authentication client application

HIGH

8.8

CVSS Score

Published: August 28, 2024 at 06:28 AM UTC

Updated: June 17, 2026 at 04:01 AM UTC

1 product affected across 1 vendorNetIQ Advanced Authentication

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Severity

HIGH8.8

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

Description

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

NetIQ Advanced Authentication · Microfocus

95%

v < 6.3v < 6.3.5.16.3.5.1 ≤ v < <6.3 6.3 sp1 6.3 sp2 6.3 sp3 6.3 sp4 6.3 sp4_patch1 6.3 sp5 6.3.5.1

Affected range stops below 6.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.3.5.1, so it looks safe — our inference, not a vendor statement

Affected range stops below <, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://www.netiq.com/documentation/advanced-authentication-63/advanced-authentication-releasenotes-6351/data/advanced-authentication-releasenotes-6351.html

References (1)

Release NotesVendor Advisory

Source: [email protected]

https://www.netiq.com/documentation/advanced-authentication-63/advanced-authentication-releasenotes-6351/data/advanced-authentication-releasenotes-6351.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]

Attack Vector: ADJACENT_NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-326

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