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CVE Record

CVE-2020-2856: Vulnerability in the Oracle Advanced Outbound Telephony product of Oracle E-Business Suite (component: User...

Vulnerability in the Oracle Advanced Outbound Telephony product of Oracle E-Business Suite (component: User Interface). Supported versions that are affected are 12.1.1-12.1.3. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Advanced Outbound Telephony. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Advanced Outbound Telephony, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Advanced Outbound Telephony accessible data as well as unauthorized update, insert or delete access to some of Oracle Advanced Outbound Telephony accessible data. CVSS 3.0 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).

HighCVSS 8.2Not 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 E-Business Suite issue in Advanced Outbound Telephony. An unauthenticated attacker with HTTP network access could compromise data if a user is tricked into interacting with the vulnerable interface.

Executive priority

Treat as a priority remediation item for any affected Oracle E-Business Suite environment because the issue can expose critical data and permit limited data modification without attacker authentication.

Technical view

CVE-2020-2856 affects Oracle Advanced Outbound Telephony 12.1.1 through 12.1.3, component User Interface. CVSS 3.0 is 8.2: network exploitable, low complexity, no privileges required, user interaction required, changed scope, high confidentiality impact, low integrity impact, no availability impact.

Likely exposure

Exposure is most likely where Oracle E-Business Suite includes Advanced Outbound Telephony versions 12.1.1 to 12.1.3 and the relevant HTTP interface is reachable by users or networks an attacker can influence.

Exploitation context

The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The CVE states attacks are easily exploitable over HTTP but require human interaction from someone other than the attacker.

Researcher notes

The public record does not provide CWE, detailed root cause, payload mechanics, or confirmed exploit activity. Analysis should stay anchored to version exposure, HTTP reachability, user-interaction path, and Oracle CPU remediation status.

Mitigation direction

  • Identify affected Oracle Advanced Outbound Telephony deployments and versions.
  • Review Oracle April 2020 Critical Patch Update guidance for this CVE.
  • Apply vendor-supported patches or upgrade guidance for affected E-Business Suite components.
  • Restrict unnecessary HTTP access to the affected interface where feasible.
  • Prioritize user-facing instances because exploitation requires human interaction.

Validation and detection

  • Confirm whether Advanced Outbound Telephony 12.1.1 through 12.1.3 is installed.
  • Verify the Oracle CPU fix status for CVE-2020-2856.
  • Check whether the vulnerable HTTP interface is externally or broadly reachable.
  • Review logs for suspicious access to Advanced Outbound Telephony UI paths.
  • Confirm compensating access controls do not replace required vendor patching.
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-2020-2856 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.2 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/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
8.2CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N2.84.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.2High
CVSS 3.0 vector shape for CVE-2020-2856Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/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 CorporationAdvanced Outbound Telephony12.1.1-12.1.3Listed
Weakness

CWE details

No CWE listed

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