Security readout for executives and security teams
Plain-English summary
This is a critical Oracle Essbase Administration Services flaw. An unauthenticated attacker who can reach the EAS Console over HTTP could take over the service. Because Essbase often supports finance and planning workloads, compromise could affect sensitive business data and dependent systems.
Executive priority
Prioritize remediation immediately for exposed or business-critical Essbase environments. The issue allows unauthenticated service takeover and carries maximum CVSS impact, but public-source evidence provided here does not confirm active exploitation.
Technical view
CVE-2021-35652 affects Oracle Hyperion Essbase Administration Services EAS Console versions prior to 11.1.2.4.046 and prior to 21.3. The CVSS 3.1 score is 10.0, with network access, low complexity, no privileges, no user interaction, scope change, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where EAS Console HTTP access is reachable from untrusted networks, internal broad-access networks, VPN users, or partner networks. Internet-facing EAS instances should be treated as urgent.
Exploitation context
The provided sources state the flaw is easily exploitable remotely without authentication over HTTP. They do not state active exploitation, and the bundle marks the CVE as not in KEV.
Researcher notes
No CWE, root cause, proof-of-concept, or exploit telemetry is provided in the source bundle. Analysis should stay focused on version exposure, HTTP reachability, Oracle CPU applicability, and evidence of suspicious access.
Mitigation direction
- Apply Oracle CPU October 2021 guidance or later supported Essbase updates.
- Upgrade affected EAS versions to 11.1.2.4.046, 21.3, or later as applicable.
- Restrict EAS Console HTTP access to trusted administrative networks.
- Place EAS behind strong network controls and monitored authentication boundaries.
- Check Oracle guidance for any environment-specific prerequisites or interim mitigations.
Validation and detection
- Inventory all Essbase Administration Services deployments and record exact versions.
- Confirm whether EAS Console HTTP endpoints are reachable from untrusted networks.
- Verify deployed versions are not prior to 11.1.2.4.046 or 21.3.
- Review logs for unusual unauthenticated HTTP activity against EAS Console.
- Confirm compensating network restrictions are enforced and monitored.
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-2021-35652 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
- Critical
- CVSS
- 10 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:L/PR:N/UI:N/S:C/C:H/I:H/A:H3.96Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
10CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.oracle.com/security-alerts/cpuoct2021.htmlCVE 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.