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CVE Record

CVE-2021-35655: Vulnerability in the Essbase Administration Services product of Oracle Essbase (component: EAS Console).

Vulnerability in the Essbase Administration Services product of Oracle Essbase (component: EAS Console). The supported versions that are affected are Prior to 11.1.2.4.046 and Prior to 21.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Essbase Administration Services. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Essbase Administration Services accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-35655 affects Oracle Essbase Administration Services EAS Console. An unauthenticated attacker who can reach it over HTTP could read some accessible EAS data. The public sources describe confidentiality impact only, not data modification or service disruption.

Executive priority

Prioritize remediation in normal patch cycles, escalating if EAS is reachable from the internet or broad internal networks. The main business risk is unauthorized access to administrative-service data, not confirmed system takeover from the supplied evidence.

Technical view

The flaw is network-reachable, low-complexity, requires no privileges or user interaction, and has CVSS 3.1 score 5.3. Affected supported versions are before 11.1.2.4.046 and before 21.3. Impact is limited to unauthorized read access to a subset of EAS-accessible data.

Likely exposure

Exposure is most likely where Essbase Administration Services or EAS Console remains deployed and reachable over HTTP from internal, partner, or internet-facing networks. Systems on fixed versions 11.1.2.4.046, 21.3, or later are not described as affected.

Exploitation context

The source describes the issue as easily exploitable by an unauthenticated network attacker via HTTP. No CISA KEV listing is provided, and the supplied sources do not cite active exploitation or public weaponization.

Researcher notes

Sources do not provide a CWE, root-cause detail, endpoint specifics, or exploit indicators. Validation should focus on version exposure, network reachability, and whether compensating access controls reduce unauthenticated HTTP access to EAS Console.

Mitigation direction

  • Upgrade affected EAS deployments to 11.1.2.4.046, 21.3, or later per Oracle guidance.
  • Apply Oracle October 2021 Critical Patch Update guidance for Essbase Administration Services.
  • Restrict HTTP access to EAS Console to trusted administrative networks.
  • Remove or disable unused EAS Console exposure where operationally feasible.

Validation and detection

  • Inventory Essbase Administration Services and EAS Console deployments.
  • Verify each deployment version against 11.1.2.4.046 and 21.3 thresholds.
  • Confirm EAS HTTP access is not exposed to untrusted networks.
  • Review access logs for unusual unauthenticated requests to EAS interfaces.
Prepared
Confidence
high
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2021-35655 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Official CVE source material

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.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N3.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.3Medium
CVSS 3.1 vector shape for CVE-2021-35655Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Oracle CorporationHyperion Essbase Administration Servicesunspecified, unspecifiedListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.