Security readout for executives and security teams
Plain-English summary
Cisco HyperFlex had weak iframe protection in its web interface. A remote attacker could trick a user into visiting a malicious page that frames the interface, enabling clickjacking or related browser-side attacks. User interaction is required, and the CVSS impact emphasizes confidentiality rather than integrity or availability.
Executive priority
Treat this as a moderate-priority management-plane issue. It is not reported as actively exploited, but it can affect sensitive administrative sessions if users can be tricked into visiting malicious pages.
Technical view
CVE-2019-1975 is a cross-frame scripting issue in Cisco HyperFlex Software caused by insufficient HTML iframe protection. It is remotely reachable without authentication but requires user interaction. The CVSS v3.0 vector is AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, mapped to CWE-693.
Likely exposure
Exposure is most likely where Cisco HyperFlex HX-Series web management interfaces are accessible to users who could be lured to attacker-controlled pages. The source bundle does not specify exact affected versions, deployment conditions, or internet exposure requirements.
Exploitation context
The described attack requires directing a user to a malicious webpage containing an iframe. The CVE is not listed as CISA KEV in the provided bundle, and no cited source reports active exploitation.
Researcher notes
The public data supports XFS/clickjacking risk and high confidentiality impact, but affected versions are unspecified in the bundle. Avoid assuming patch details beyond Cisco’s advisory. Validation should focus on HyperFlex web interface exposure, user interaction paths, and official Cisco version guidance.
Mitigation direction
- Review Cisco’s advisory for affected releases, fixed software, and official workarounds.
- Limit access to HyperFlex management interfaces to trusted administrative networks.
- Use browser and gateway controls that reduce clickjacking and malicious-page exposure.
- Prioritize remediation for environments where admins browse from systems with HyperFlex management access.
Validation and detection
- Inventory Cisco HyperFlex HX-Series deployments and associated management interfaces.
- Check installed HyperFlex Software versions against Cisco’s advisory.
- Confirm whether management interfaces are reachable from user workstations or untrusted networks.
- Review security controls for iframe, clickjacking, and malicious site protections.
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.
CWE-693: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2019-1975 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
- 6.5 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N2.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.5MediumVector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source materials
- CVE List V5 sourceCVE List V5
- 20190918 Cisco HyperFlex Software Cross-Frame Scripting VulnerabilityCVE reference · vendor-advisory, x_refsource_CISCO
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.
Protection Mechanism Failure
Protection Mechanism Failure represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.