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CVE Record

CVE-2021-39070: IBM Security Verify Access 10.0.0.0, 10.0.1.0 and 10.0.2.0 with the advanced access control authentication...

IBM Security Verify Access 10.0.0.0, 10.0.1.0 and 10.0.2.0 with the advanced access control authentication service enabled could allow an attacker to authenticate as any user on the system. IBM X-Force ID: 215353.

CriticalCVSS 9.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysiscritical

Security readout for executives and security teams

Plain-English summary

This vulnerability affects specific IBM Security Verify Access 10.0.x deployments when advanced access control authentication is enabled. An unauthenticated network attacker could authenticate as any user, creating a direct risk of full account compromise and business-impacting access to protected services.

Executive priority

Treat this as urgent for any affected IBM identity infrastructure. The impact is potential authentication as any user, which can undermine access controls across dependent applications. Prioritize confirmation and vendor-directed remediation, especially for externally reachable systems.

Technical view

CVE-2021-39070 is a critical authentication bypass or privilege escalation issue in IBM Security Verify Access 10.0.0.0, 10.0.1.0, and 10.0.2.0 with advanced access control authentication enabled. The published CVSS 3.0 score is 9.8 with network attack vector, no privileges, and no user interaction required.

Likely exposure

Exposure is limited to IBM Security Verify Access 10.0.0.0, 10.0.1.0, and 10.0.2.0 systems where advanced access control authentication service is enabled.

Exploitation context

The source bundle does not show CISA KEV listing or cited active exploitation. IBM X-Force tracks the issue as ID 215353. The CVSS vector indicates low attack complexity and unauthenticated network reachability, but exploit maturity is listed as unproven.

Researcher notes

The CVE record lacks CWE detail and normalized affected CPEs in the provided bundle. The strongest evidence is IBM’s advisory reference, X-Force ID 215353, and the CVSS vector. Do not assume affected products beyond the named ISVA versions and enabled service condition.

Mitigation direction

  • Review IBM advisory 6552318 for vendor-specified fixes or upgrade paths.
  • Prioritize remediation for affected internet-facing or identity-critical deployments.
  • Confirm whether advanced access control authentication is enabled on each ISVA instance.
  • Use vendor guidance for temporary controls if immediate updating is not possible.

Validation and detection

  • Inventory IBM Security Verify Access versions across production and staging.
  • Identify systems running 10.0.0.0, 10.0.1.0, or 10.0.2.0.
  • Check whether advanced access control authentication service is enabled.
  • After remediation, verify the installed version is no longer affected.
  • Review authentication logs for unusual successful logins or account switching.
Prepared
Confidence
high
Sources
4

Public sources used

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-2021-39070 mapping review

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Vulnerability profileCVE Program record
Severity
Critical
CVSS
9.8 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/UI:N/PR:N/AC:L/A:H/I:H/AV:N/C:H/S:U/RL:O/RC:C/E:U

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
3Source 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
9.8CVSS 3.0CriticalCVSS:3.0/UI:N/PR:N/AC:L/A:H/I:H/AV:N/C:H/S:U/RL:O/RC:C/E:U3.95.9Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

9.8Critical
CVSS 3.0 vector shape for CVE-2021-39070Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/UI:N/PR:N/AC:L/A:H/I:H/AV:N/C:H/S:U/RL:O/RC:C/E:U

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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