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CVE Record

CVE-2021-1996: Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services).

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Web Services). Supported versions that are affected are 10.3.6.0.0 and 12.1.3.0.0. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized read access to a subset of Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 2.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N).

LowCVSS 2.4Not KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2021-1996 is a low-severity Oracle WebLogic Server issue that could let a highly privileged attacker read some WebLogic-accessible data. It is not a broad remote takeover issue based on the supplied evidence, because exploitation requires high privileges and another person’s interaction.

Executive priority

Handle through normal vulnerability management unless affected WebLogic systems are internet-exposed or used in sensitive administrative workflows. The business impact is limited data exposure, but unsupported legacy WebLogic deployments may increase operational risk.

Technical view

The flaw affects Oracle WebLogic Server Web Services in versions 10.3.6.0.0 and 12.1.3.0.0. CVSS 3.1 is 2.4: network attack vector, low complexity, high privileges required, user interaction required, and low confidentiality impact only.

Likely exposure

Exposure appears limited to organizations still running Oracle WebLogic Server 10.3.6.0.0 or 12.1.3.0.0 with Web Services reachable over HTTP. Risk is narrower where administrative access is tightly controlled and untrusted users cannot influence privileged workflows.

Exploitation context

The supplied sources do not show CISA KEV listing or active exploitation. Oracle describes the issue as easily exploitable over HTTP, but only by a high-privileged attacker and with required human interaction from someone else.

Researcher notes

Key constraints are high privileges, required user interaction, unchanged scope, and confidentiality-only impact. The source bundle does not provide a CWE, proof of concept, exploitation evidence, or detailed mitigation text beyond the Oracle CPU reference.

Mitigation direction

  • Review Oracle January 2021 CPU guidance for the applicable WebLogic update path.
  • Prioritize remediation for affected WebLogic versions exposed to privileged users over HTTP.
  • Restrict WebLogic administrative and service access to trusted networks where possible.
  • Reduce standing high-privilege access and review privileged account necessity.
  • If no patch status is known, confirm vendor-supported remediation with Oracle.

Validation and detection

  • Inventory WebLogic Server instances and confirm exact installed versions.
  • Check whether versions 10.3.6.0.0 or 12.1.3.0.0 are present.
  • Verify whether Web Services are reachable over HTTP.
  • Review change records against Oracle January 2021 CPU guidance.
  • Confirm privileged account access paths and related user-interaction workflows.
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-2021-1996 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
Low
CVSS
2.4 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/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
2.4CVSS 3.1LowCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:N/A:N0.91.4Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

2.4Low
CVSS 3.1 vector shape for CVE-2021-1996Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/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 CorporationWebLogic Server10.3.6.0.0, 12.1.3.0.0Listed
Weakness

CWE details

No CWE listed

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