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CVE Record

CVE-2021-2277: Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core).

Vulnerability in the Oracle Coherence product of Oracle Fusion Middleware (component: Core). Supported versions that are affected are 3.7.1.0, 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 HTTP to compromise Oracle Coherence. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Coherence accessible data. CVSS 3.1 Base Score 7.5 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This is a high-severity Oracle Coherence flaw where an unauthenticated network attacker using HTTP could read critical data. The business risk is data exposure from affected Coherence deployments, not system takeover or service outage based on the published CVSS impact.

Executive priority

Prioritize remediation for internet-facing or business-critical Coherence deployments because the flaw can expose critical data without authentication. Internal-only systems still warrant action if they process sensitive data or are reachable by broad user networks.

Technical view

CVE-2021-2277 affects Oracle Coherence Core versions 3.7.1.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0, and 14.1.1.0.0. The CVSS vector is network exploitable, low complexity, no privileges, no user interaction, with high confidentiality impact only.

Likely exposure

Exposure is most likely where Oracle Coherence HTTP-accessible services are reachable from untrusted networks or insufficiently segmented internal networks. Organizations using Oracle Fusion Middleware stacks should verify whether Coherence is present and at an affected version.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation evidence. The vulnerability is described as easily exploitable over HTTP without authentication, so exposed services should be treated as sensitive even without confirmed exploitation.

Researcher notes

No CWE is supplied in the source bundle, and public details here do not describe the vulnerable code path. Assessment should stay focused on version exposure, HTTP reachability, confidentiality impact, and Oracle advisory alignment.

Mitigation direction

  • Apply Oracle Critical Patch Update guidance for April 2021 or later supported fixes.
  • Identify and upgrade affected Oracle Coherence versions where present.
  • Restrict HTTP access to Coherence services to trusted networks only.
  • Use compensating network controls until vendor remediation is confirmed.

Validation and detection

  • Inventory Oracle Coherence deployments and record exact versions.
  • Check whether affected versions are still running in production or staging.
  • Confirm Oracle CPU remediation status with patch records.
  • Review network paths exposing Coherence HTTP interfaces.
  • Inspect logs for unusual unauthenticated HTTP access patterns.
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-2021-2277 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
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2021-2277Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 CorporationCoherence3.7.1.0, 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.