CVE-2020-2524Network attack vector

Unauthenticated hang or repeated crash

Published Apr 15, 2020 · Updated Sep 30, 2024

Denial of service in InQuira Search in Oracle Knowledge Management 8.6.0 through 8.6.3 allows remote attackers to hang or crash the service via HTTP. Oracle has not disclosed the crafted request structure or the flawed operation within InQuira Search that triggers the failure. Network access without credentials or user interaction is sufficient, but exploitation has high complexity and affects availability only.

CVSS severity5.9
Medium
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in InQuira Search in Oracle Knowledge Management 8.6.0 through 8.6.3 allows remote attackers to hang or crash the service via HTTP. Oracle has not disclosed the crafted request structure or the flawed operation within InQuira Search that triggers the failure. Network access without credentials or user interaction is sufficient, but exploitation has high complexity and affects availability only.

The record

CVE
CVE-2020-2524
Published
Apr 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle
Product
Oracle Knowledge Management
Classifications
T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 30, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.6.0-8.6.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle Knowledge Managementversion=8.6.0-8.6.3

Published CVSS scores

5.9OracleCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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