Security readout for executives and security teams
Plain-English summary
CVE-2021-26584 is a remotely exploitable cross-site scripting issue in HPE OneView for VMware vCenter. The provided sources identify affected deployments as versions prior to 10.2. Business urgency depends on whether this integration is deployed and reachable by authenticated administrators or other users.
Executive priority
Treat this as a targeted remediation item for environments using OV4VC before 10.2. Prioritize confirmation and upgrade, but avoid emergency escalation unless exposure or additional exploit evidence is found.
Technical view
The vulnerability affects HPE OneView for VMware vCenter with Operations Manager and Log Insight before version 10.2. The public bundle describes remote cross-site scripting, but does not provide CVSS metrics, affected endpoints, authentication requirements, payload conditions, or privilege impact details.
Likely exposure
Exposure is limited to organizations running HPE OneView for VMware vCenter prior to 10.2. Internet exposure is not established by the sources; validate internal vCenter plugin deployments and management network reachability.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. XSS could affect users interacting with the product interface, but exploitability details are incomplete in the provided sources.
Researcher notes
The public data is sparse: no CVSS vector, CWE, endpoint, authentication context, or exploit conditions are included. Analysis should stay anchored to affected-version validation, vendor update confirmation, and absence of KEV evidence.
Mitigation direction
- Upgrade HPE OneView for VMware vCenter to 10.2 or later.
- Review the HPE advisory for the exact fixed software package.
- Restrict access to OV4VC management interfaces to trusted networks.
- Apply standard browser and session protections for administrative users.
- Monitor HPE support channels for updated guidance.
Validation and detection
- Inventory HPE OneView for VMware vCenter deployments.
- Confirm installed OV4VC versions are 10.2 or later.
- Check whether the plugin is reachable beyond management networks.
- Review access logs for unusual interface activity.
- Verify change records show the HPE update was applied.
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-2021-26584 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbgn04151en_usCVE reference · x_refsource_MISC
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.