CVE-2021-2240Network attack vector

Unauthenticated data disclosure alteration and service interruption

Published Apr 22, 2021 · Updated Sep 26, 2024

Oracle Outside In Technology 8.5.5 allows remote attackers to read or alter data and partially interrupt service over HTTP. The affected Outside In Filters component processes content supplied by a hosting application, but Oracle has not disclosed the faulty operation or input format. Exposure requires an integrating application to pass network-received data to the SDK; consequences are limited to partial data disclosure, alteration, and service interruption.

CVSS severity7.3
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Oracle Outside In Technology 8.5.5 allows remote attackers to read or alter data and partially interrupt service over HTTP. The affected Outside In Filters component processes content supplied by a hosting application, but Oracle has not disclosed the faulty operation or input format. Exposure requires an integrating application to pass network-received data to the SDK; consequences are limited to partial data disclosure, alteration, and service interruption.

The record

CVE
CVE-2021-2240
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle Outside In Technology
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 22, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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=8.5.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Outside In Technologyversion=8.5.5

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3OracleCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

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.

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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

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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