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CVE Record

CVE-2021-22515: Multi-Factor Authentication (MFA) downgrade exposure in NetIQ Advanced Authentication Server

Multi-Factor Authentication (MFA) functionality can be bypassed, allowing the use of single factor authentication in NetIQ Advanced Authentication versions prior to 6.3 SP4 Patch 1.

MediumCVSS 4.8Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

NetIQ Advanced Authentication had an MFA bypass issue where affected deployments could allow single-factor authentication instead of MFA. The source bundle identifies versions before 6.3 SP4 Patch 1 as affected. This is not rated critical, but it matters where the product protects privileged, remote, or sensitive access.

Executive priority

Schedule remediation in the normal security patch cycle, faster for systems protecting administrators or high-value applications. The issue undermines MFA assurance, but available evidence does not support emergency treatment absent exposure to sensitive access paths.

Technical view

CVE-2021-22515 affects Micro Focus NetIQ Advanced Authentication before 6.3 SP4 Patch 1. The CVSS 3.1 score is 4.8 with adjacent attack vector, high complexity, low privileges, no user interaction, and high confidentiality impact. The described outcome is MFA functionality bypass enabling single-factor authentication.

Likely exposure

Exposure is limited to organizations running NetIQ Advanced Authentication versions prior to 6.3 SP4 Patch 1. The provided sources do not identify affected configurations, deployment modes, or specific integrations, so asset inventory and version confirmation are essential.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. CVSS indicates exploitation requires adjacent access, low privileges, and high complexity. Treat this as a targeted access-control weakness rather than proven broad exploitation.

Researcher notes

Evidence is sparse. The public record describes the impact and fixed version but does not provide root-cause details, vulnerable flows, exploit maturity, or configuration conditions. Avoid assuming internet exposure or active exploitation without additional vendor or telemetry evidence.

Mitigation direction

  • Upgrade NetIQ Advanced Authentication to 6.3 SP4 Patch 1 or later.
  • Review vendor release notes before applying updates.
  • Prioritize deployments protecting privileged or sensitive access.
  • Monitor authentication outcomes for unexpected single-factor access.

Validation and detection

  • Inventory all NetIQ Advanced Authentication servers and versions.
  • Confirm no deployment remains below 6.3 SP4 Patch 1.
  • Verify MFA policies still require the intended factors.
  • Review authentication logs for suspicious MFA bypass patterns.
Prepared
Confidence
medium
Sources
3

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2021-22515 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.8 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.8CVSS 3.1MediumCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N1.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

4.8Medium
CVSS 3.1 vector shape for CVE-2021-22515Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Micro FocusNetIQ Advanced AuthenticationNetIQ Advanced AuthenticationListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.