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CVE Record

CVE-2020-2524: Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: InQuira Search).

Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: InQuira Search). Supported versions that are affected are 8.6.0-8.6.3. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Knowledge. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Knowledge. CVSS 3.0 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).

MediumCVSS 5.9Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2020-2524 is a denial-of-service issue in Oracle Knowledge InQuira Search. An unauthenticated network attacker using HTTP could, under difficult exploitation conditions, make affected Oracle Knowledge systems hang or crash repeatedly. The cited impact is availability only; the sources do not indicate data theft, data modification, or active exploitation.

Executive priority

Treat this as a moderate operational resilience issue. It does not indicate confidentiality loss, but affected public knowledge systems could be disrupted. Prioritize remediation where Oracle Knowledge supports customer service, support portals, or revenue-critical workflows.

Technical view

Oracle reports affected Oracle Knowledge versions 8.6.0 through 8.6.3. The CVSS 3.0 vector is AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H, score 5.9. The vulnerability is remotely reachable over HTTP without credentials but has high attack complexity and results in complete denial of service.

Likely exposure

Exposure is limited to organizations running Oracle Knowledge 8.6.0-8.6.3, especially HTTP-accessible InQuira Search deployments. Internet-facing or customer-support knowledge portals would carry higher operational risk than internal-only systems.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation or public exploit availability. Exploitation is described as difficult, unauthenticated, network-based, and HTTP-accessible, with availability impact only.

Researcher notes

No CWE is provided in the source bundle. The available evidence supports a high-complexity unauthenticated HTTP denial-of-service condition in InQuira Search only. Do not broaden affected versions or products beyond Oracle Knowledge 8.6.0-8.6.3 without vendor evidence.

Mitigation direction

  • Review Oracle's April 2020 Critical Patch Update guidance for Oracle Knowledge.
  • Patch or upgrade affected Oracle Knowledge 8.6.0-8.6.3 deployments per Oracle guidance.
  • Restrict HTTP exposure to trusted networks where business requirements allow.
  • Monitor Oracle Knowledge availability and restart patterns for repeated crashes.
  • Prioritize internet-facing knowledge portals before internal-only deployments.

Validation and detection

  • Inventory Oracle Knowledge deployments and record exact product versions.
  • Confirm whether InQuira Search is enabled and reachable over HTTP.
  • Identify internet-facing or third-party-accessible Oracle Knowledge endpoints.
  • Verify Oracle April 2020 CPU remediation status with patch records.
  • Check monitoring data for unexplained hangs or repeatable crashes.
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-2020-2524 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.9 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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
5.9CVSS 3.0MediumCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H2.23.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.9Medium
CVSS 3.0 vector shape for CVE-2020-2524Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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 CorporationKnowledge8.6.0-8.6.3Listed
Weakness

CWE details

No CWE listed

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