Security readout for executives and security teams
Plain-English summary
IBM Security Guardium 11.2 has hard-coded secret material, such as a password or cryptographic key. If exposed, this could let an attacker access confidential information. The public data rates this as medium severity, mainly because exploitation is network-based but high complexity and limited to confidentiality impact.
Executive priority
Prioritize remediation for Guardium 11.2 systems that protect sensitive database environments or are broadly network-reachable. This is not a confirmed emergency from the provided sources, but it affects security infrastructure and confidentiality, so it should not remain unresolved.
Technical view
CVE-2021-20426 affects IBM Security Guardium 11.2. The issue is hard-coded credentials used for inbound authentication, outbound communication to external components, or encryption of internal data. CVSS 3.0 is 5.9 with network attack vector, no privileges or user interaction, high attack complexity, and high confidentiality impact.
Likely exposure
Exposure is limited to organizations running IBM Security Guardium 11.2. Risk is higher where Guardium services or related management paths are reachable from broader internal networks or where the hard-coded secret protects sensitive database security telemetry or communications.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVSS vector marks exploit maturity as unproven, so treat this as a credible confidentiality risk rather than confirmed in-the-wild activity.
Researcher notes
Public detail is limited. The description does not name the specific hard-coded credential, affected component, exploit method, or fixed build. Avoid assumptions beyond IBM Security Guardium 11.2 and validate remediation directly against IBM’s advisory and X-Force entry.
Mitigation direction
- Inventory IBM Security Guardium deployments and identify any version 11.2 systems.
- Review IBM advisory 6455281 and apply IBM-recommended remediation.
- Restrict network access to Guardium services and management interfaces.
- Review related external component communications for unnecessary exposure.
- Plan credential or key rotation only where IBM guidance supports it.
Validation and detection
- Confirm Guardium versions through asset inventory or product administration records.
- Verify remediation status against the IBM support advisory.
- Check network controls limiting access to Guardium components.
- Review logs for unexpected authentication or outbound communication involving Guardium.
- Document remaining 11.2 instances with owner, exposure, and remediation date.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-20426 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.9 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/I:N/S:U/AC:H/A:N/C:H/UI:N/AV:N/PR:N/RC:C/RL:O/E:U
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.
CVSS vector scores
1 official scoreWe 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.
CVSS:3.0/I:N/S:U/AC:H/A:N/C:H/UI:N/AV:N/PR:N/RC:C/RL:O/E:U2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/I:N/S:U/AC:H/A:N/C:H/UI:N/AV:N/PR:N/RC:C/RL:O/E:U
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6455281CVE reference · x_refsource_CONFIRM
- ibm-guardium-cve202120426-info-disc (196313)CVE reference · vdb-entry, x_refsource_XF
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.