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CVE Record

CVE-2021-2294: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core).

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via T3, IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle WebLogic Server accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Oracle WebLogic Server. CVSS 3.1 Base Score 6.5 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L).

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-2294 affects Oracle WebLogic Server. An unauthenticated attacker with network access over T3 or IIOP could alter some WebLogic-accessible data or cause partial service disruption. The listed CVSS score is 6.5, so urgency is moderate but higher for internet- or partner-exposed WebLogic services.

Executive priority

Treat as a moderate-priority WebLogic remediation item. Escalate if affected servers are internet-facing, support critical applications, or expose T3/IIOP beyond trusted networks.

Technical view

Oracle describes an easily exploitable Core component flaw in WebLogic Server versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. Attack vector is network, complexity is low, no privileges or user interaction are required, with low integrity and availability impacts and no confidentiality impact stated.

Likely exposure

Exposure is most relevant where affected WebLogic versions are reachable over T3 or IIOP. Public, partner-facing, or broadly reachable internal deployments carry more business risk than tightly segmented application servers.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation evidence. The vulnerability is unauthenticated and network-reachable, which makes exposure control important even without confirmed exploitation in the source bundle.

Researcher notes

Public source detail is limited to Oracle and CVE metadata. No CWE is provided. Focus validation on affected versions, protocol reachability, patch status, and compensating network controls. Do not assume broader data compromise beyond stated integrity and availability impact.

Mitigation direction

  • Review Oracle April 2021 CPU guidance and apply the applicable WebLogic Server security update.
  • Prioritize affected WebLogic versions listed by Oracle and CVE records.
  • Restrict T3 and IIOP access to trusted administration and application paths.
  • Monitor Oracle advisories for version-specific remediation details if patch status is unclear.
  • Test changes in staging before production rollout to avoid availability regressions.

Validation and detection

  • Inventory WebLogic Server instances and record exact installed versions.
  • Confirm whether T3 or IIOP is reachable from untrusted networks.
  • Check patch status against Oracle April 2021 CPU guidance.
  • Review monitoring for unexpected WebLogic data changes or partial service disruption.
  • Validate network controls limit access to required peers only.
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-2021-2294 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.5 (3.1)
Known Exploited
No
Published

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

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
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L3.92.5Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2021-2294Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

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 CorporationWebLogic Server10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, 14.1.1.0.0Listed
Weakness

CWE details

No CWE listed

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