Security readout for executives and security teams
Plain-English summary
This vulnerability lets a malicious custom API client over the network perform Spotfire Server internal API operations beyond its authorized scope. Exploitation is described as difficult and requires another person’s interaction, but successful abuse could affect confidentiality, integrity, and availability.
Executive priority
Treat as high priority for Spotfire environments with custom API integrations or broad network reachability. The lack of cited active exploitation lowers emergency pressure, but the potential business impact is high if authorization boundaries are bypassed.
Technical view
CVE-2021-43051 is an authorization flaw in TIBCO Spotfire Server. CVSS 3.1 is 7.1: network reachable, high complexity, low privileges, user interaction required, unchanged scope, and high CIA impact. No CWE is listed in the provided sources.
Likely exposure
Exposure is most likely where affected TIBCO Spotfire Server versions are deployed, reachable over a network, and integrated with custom API clients. Affected releases include 10.10.6 and below, 11.0.0 through 11.4.1, and 11.5.0 through 11.6.0.
Exploitation context
The source bundle does not show CISA KEV listing or other evidence of active exploitation. The described attack needs network access, a malicious custom API client, low privileges, high complexity, and human interaction from someone other than the attacker.
Researcher notes
Focus validation on authorization scope enforcement for custom API clients and internal API operation boundaries. The provided evidence does not include a CWE, exploit details, or explicit fixed-version text, so remediation should be tied to TIBCO’s advisory.
Mitigation direction
- Check TIBCO’s advisory for fixed versions and supported upgrade paths.
- Upgrade affected Spotfire Server releases according to vendor guidance.
- Restrict network access to Spotfire Server administration and API endpoints.
- Review custom API client registrations, scopes, and business justification.
- Remove or disable unused custom API clients.
Validation and detection
- Inventory all TIBCO Spotfire Server deployments and record exact versions.
- Compare versions against the affected release list in the advisory.
- Identify custom API clients with network access to Spotfire Server.
- Review logs for unexpected internal API operations by custom clients.
- Confirm compensating network restrictions are enforced.
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-2021-43051 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
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:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.1HighVector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.tibco.com/services/support/advisoriesCVE reference · x_refsource_CONFIRM
- https://www.tibco.com/support/advisories/2021/12/tibco-security-advisory-december-14-2021-tibco-spotfire-server-2021-43051CVE reference · x_refsource_CONFIRM
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.