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CVE Record

CVE-2021-39076: IBM Security Guardium 10.5 and 11.3 uses weaker than expected cryptographic algorithms that could allow an...

IBM Security Guardium 10.5 and 11.3 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt sensitive information. IBM X-Force ID: 215585.

LowCVSS 3.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

IBM Security Guardium 10.5 and 11.3 may use cryptography weaker than expected, creating a risk that sensitive information could be decrypted. The published severity is low, with limited confidentiality impact and high attack complexity.

Executive priority

Handle through normal vulnerability management unless the affected Guardium instance protects highly sensitive data or is exposed to untrusted networks. The business risk is confidentiality-focused and currently rated low.

Technical view

CVE-2021-39076 affects IBM Security Guardium 10.5 and 11.3. The CVSS 3.0 score is 3.7: network vector, high attack complexity, no privileges or user interaction required, and low confidentiality impact only. No CWE is listed in the source bundle.

Likely exposure

Exposure appears limited to environments running IBM Security Guardium 10.5 or 11.3. Prioritize systems handling sensitive database activity monitoring data or deployed on broadly reachable networks.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector indicates high attack complexity and confidentiality-only impact, but unauthenticated network reachability is still relevant.

Researcher notes

Evidence is limited to the CVE, IBM advisory reference, and IBM X-Force ID 215585. The bundle does not name specific weak algorithms, fixed builds, exploit details, or compensating controls beyond vendor references.

Mitigation direction

  • Identify all IBM Security Guardium 10.5 and 11.3 deployments.
  • Review IBM advisory 6572979 for vendor-confirmed remediation guidance.
  • Apply IBM-recommended fixes or upgrades for affected Guardium versions.
  • Restrict network access to Guardium management and service interfaces where feasible.
  • Monitor IBM X-Force entry 215585 for updated guidance.

Validation and detection

  • Confirm installed Guardium versions against the affected 10.5 and 11.3 releases.
  • Check whether IBM advisory remediation has been applied.
  • Review asset exposure for internet or untrusted-network reachability.
  • Verify sensitive data handling paths that depend on Guardium cryptographic protections.
  • Document exception status if remediation is deferred.
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-2021-39076 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
Low
CVSS
3.7 (3.0)
Known Exploited
No
Published

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

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
3.7CVSS 3.0LowCVSS:3.0/AV:N/C:L/AC:H/A:N/I:N/S:U/PR:N/UI:N/E:U/RL:O/RC:C2.21.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

3.7Low
CVSS 3.0 vector shape for CVE-2021-39076Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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
IBMSecurity Guardium10.5, 11.3Listed
Weakness

CWE details

No CWE listed

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