Security readout for executives and security teams
Plain-English summary
IBM Spectrum Copy Data Management 2.2.13 and earlier used weaker-than-expected cryptography. If exploited, an attacker could decrypt highly sensitive information. The available sources rate this medium severity because exploitation has high complexity, but confidentiality impact is high.
Executive priority
Handle as a planned security remediation with elevated attention for environments holding regulated, backup, or recovery data. It is not evidenced as actively exploited, but successful exploitation could expose highly sensitive information.
Technical view
The CVE describes an information disclosure weakness in IBM Spectrum Copy Data Management cryptographic algorithm strength. CVSS 3.0 is 5.9 with network attack vector, no privileges, no user interaction, high attack complexity, and high confidentiality impact only.
Likely exposure
Exposure is limited to organizations running IBM Spectrum Copy Data Management 2.2.13 or earlier. Public-facing or broadly reachable management interfaces increase concern, but the source bundle does not identify specific deployment conditions.
Exploitation context
The source bundle does not report active exploitation, and the CVE is not listed as KEV. CVSS marks exploit code maturity as unproven and attack complexity as high, so urgency is driven by sensitive-data exposure rather than known widespread abuse.
Researcher notes
Evidence is limited to the CVE record, IBM advisory reference, and IBM X-Force entry. No CWE, exploit details, affected CPEs, or precise fixed version are present in the supplied bundle, so validation should focus on product/version confirmation and IBM guidance.
Mitigation direction
- Inventory IBM Spectrum Copy Data Management deployments and confirm product versions.
- Review IBM advisory 6525554 for official remediation guidance.
- Apply IBM-provided fixes or upgrades after change validation.
- Limit network reachability to trusted administration paths where feasible.
- Treat affected systems as potential sensitive-data exposure points.
Validation and detection
- Check asset inventory for IBM Spectrum Copy Data Management 2.2.13 or earlier.
- Verify whether affected systems store or process highly sensitive backup data.
- Confirm remediation status against IBM advisory 6525554.
- Review network exposure for management or service interfaces.
- Document residual risk if vendor remediation cannot be applied promptly.
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.
CVE-2021-38947 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/UI:N/PR:N/S:U/AC:H/A:N/C:H/AV:N/E:U/RL:O/RC:C
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/UI:N/PR:N/S:U/AC:H/A:N/C:H/AV:N/E:U/RL:O/RC:C2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/I:N/UI:N/PR:N/S:U/AC:H/A:N/C:H/AV:N/E:U/RL:O/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6525554CVE reference · x_refsource_CONFIRM
- ibm-spectrum-cve202138947-info-disc (211242)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.
