Security readout for executives and security teams
IBM API Connect 5.x versions listed in the advisory used weaker cryptography than expected. A successful attacker could decrypt highly sensitive information, creating confidentiality risk for APIs and integration data. The source bundle does not show active exploitation. Exposure is most likely in organizations still running IBM API Connect 5.0.0.0 through 5.0.8.6, especially internet-facing or partner-facing deployments handling sensitive API traffic. The bundle provides no CPEs, so asset inventory and version checks are required. Treat as a moderate-priority confidentiality issue. It is not reported as actively exploited in the supplied sources, but affected API gateway environments can process sensitive business and customer data. Prioritize if legacy API Connect 5.x remains in production. Mitigation focus: Review IBM advisory guidance for the official fix or supported upgrade path.; Prioritize remediation for exposed API Connect deployments handling sensitive data.; Retire or isolate unsupported API Connect 5.x instances where immediate upgrade is not possible..
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
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CVE-2019-4256 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/UI:N/S:U/C:H/A:N/I:N/AC:H/AV:N/PR:N/RL:O/E:U/RC:C
CNA and ADP enrichment extracted from CVE v5
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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/UI:N/S:U/C:H/A:N/I:N/AC:H/AV:N/PR:N/RL:O/E:U/RC:C2.23.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.9MediumVector: CVSS:3.0/UI:N/S:U/C:H/A:N/I:N/AC:H/AV:N/PR:N/RL:O/E:U/RC:C
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/docview.wss?uid=ibm10882968CVE reference · x_refsource_CONFIRM
- ibm-api-cve20194256-info-disc (159944)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.