CVE-2020-2543Network attack vector

Data modification and disclosure via undisclosed filter flaw

Published Jan 15, 2020 · Updated Sep 30, 2024

An undisclosed flaw in Outside In Filters in Oracle Outside In Technology 8.5.4 allows remote attackers to read or modify data over HTTP. Oracle has not published the flawed operation or the crafted input that triggers it, and its advisory states that detailed security-analysis information is withheld. Exploitation requires an application to pass network-supplied data into the SDK; successful attacks can also partially interrupt that application's service.

CVSS severity7.3
High
EPSS probability1.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An undisclosed flaw in Outside In Filters in Oracle Outside In Technology 8.5.4 allows remote attackers to read or modify data over HTTP. Oracle has not published the flawed operation or the crafted input that triggers it, and its advisory states that detailed security-analysis information is withheld. Exploitation requires an application to pass network-supplied data into the SDK; successful attacks can also partially interrupt that application's service.

The record

CVE
CVE-2020-2543
Published
Jan 15, 2020
Updated
Sep 30, 2024
Vendor
Oracle Corporation
Product
Oracle Outside In Technology
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 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=8.5.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle Outside In Technologyversion=8.5.4

Published CVSS scores

7.5NISTAV:N/AC:L/Au:N/C:P/I:P/A:P
7.3Oracle CorporationCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
7.3NISTCVSS: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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