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CVE Record

CVE-2021-1995: 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 low privileged attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle WebLogic Server accessible data. CVSS 3.1 Base Score 6.5 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

MediumCVSS 6.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2021-1995 affects Oracle WebLogic Server Web Services in versions 10.3.6.0.0 and 12.1.3.0.0. A low-privileged attacker who can reach the service over HTTP could change, create, or delete critical data accessible to WebLogic. The issue is integrity-focused, not described as exposing data or causing outages.

Executive priority

Treat this as a moderate-priority integrity risk. It is not described as data theft or service outage, but successful exploitation could alter critical application data. Prioritize systems that support regulated, customer-facing, or operationally critical workflows.

Technical view

The CVE describes an easily exploitable, network-reachable HTTP vulnerability requiring low privileges and no user interaction. CVSS 3.1 is 6.5 with high integrity impact, no confidentiality or availability impact. The affected component is Web Services in Oracle WebLogic Server 10.3.6.0.0 and 12.1.3.0.0.

Likely exposure

Exposure is most likely where affected WebLogic versions are deployed and reachable over HTTP by authenticated low-privileged users. Internet-facing, partner-facing, or broadly accessible internal WebLogic deployments carry higher operational concern because data integrity is the primary risk.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. The CVE states exploitation is easy and requires only low privileges with HTTP network access, but it does not provide public exploit status, root-cause detail, or observed attacker activity.

Researcher notes

No CWE is provided in the bundle, and Oracle’s CVE text does not explain the underlying flaw. Validation should focus on affected versions, HTTP reachability, privilege boundaries, patch state, and evidence of unauthorized data modification rather than exploit reproduction.

Mitigation direction

  • Identify WebLogic Server 10.3.6.0.0 and 12.1.3.0.0 deployments.
  • Review Oracle January 2021 Critical Patch Update guidance for applicable fixes.
  • Prioritize patching HTTP-accessible or business-critical WebLogic systems.
  • Restrict HTTP access to trusted users and networks where feasible.
  • Monitor vendor advisories for any updated remediation guidance.

Validation and detection

  • Inventory WebLogic versions across production, staging, and legacy environments.
  • Confirm whether Web Services endpoints are reachable over HTTP.
  • Verify applicable Oracle CPU remediation has been applied.
  • Review change logs for unauthorized creation, deletion, or modification of critical data.
  • Check access controls for low-privileged WebLogic users.
Prepared
Confidence
medium
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-2021-1995 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
6.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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
6.5CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N2.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

6.5Medium
CVSS 3.1 vector shape for CVE-2021-1995Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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