CVE-2021-2257Network attack vector

Authenticated data disclosure via undisclosed console flaw

Published Apr 22, 2021 · Updated Sep 26, 2024

Information disclosure in Oracle Storage Cloud Software Appliance before 16.3.1.4.2 allows remote authenticated users to read accessible data. The flaw resides in the HTTP Management Console, but Oracle has not published the faulty request handler or operation on untrusted input. Exploitation requires high-privilege console credentials and yields read access to only a subset of appliance-accessible data, without reported write or service-interruption impact.

CVSS severity4.1
Medium
EPSS probability0.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in Oracle Storage Cloud Software Appliance before 16.3.1.4.2 allows remote authenticated users to read accessible data. The flaw resides in the HTTP Management Console, but Oracle has not published the faulty request handler or operation on untrusted input. Exploitation requires high-privilege console credentials and yields read access to only a subset of appliance-accessible data, without reported write or service-interruption impact.

The record

CVE
CVE-2021-2257
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle Cloud Infrastructure
Classifications
Unavailable
Attack vector
network
Privileges
admin

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=unspecified <16.3.1.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · Oracle Cloud Infrastructureversion=unspecified <16.3.1.4.2

Published CVSS scores

4.1Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:N/A:N

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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