CVE-2021-2336Network attack vector

Authenticated alteration of protected database data

Published Jul 20, 2021 · Updated Sep 26, 2024

Data integrity failure in Oracle Database Data Redaction 12.1.0.2, 12.2.0.1, and 19c allows remote authenticated users to alter data. Oracle has not disclosed the flawed operation or input handling within the Data Redaction component. Exploitation requires Create Session access over Oracle Net and interaction by another person, and it is limited to unauthorized updates, inserts, or deletions of accessible Data Redaction data.

CVSS severity3.5
Low
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Data integrity failure in Oracle Database Data Redaction 12.1.0.2, 12.2.0.1, and 19c allows remote authenticated users to alter data. Oracle has not disclosed the flawed operation or input handling within the Data Redaction component. Exploitation requires Create Session access over Oracle Net and interaction by another person, and it is limited to unauthorized updates, inserts, or deletions of accessible Data Redaction data.

The record

CVE
CVE-2021-2336
Published
Jul 20, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle Database
Classifications
T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 20, 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?

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  1. Affected versionversion=12.1.0.2
  2. Affected versionversion=12.2.0.1
  3. Affected versionversion=19c

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Databaseversion=12.1.0.2; version=12.2.0.1; version=19c

Published CVSS scores

3.5Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
3.5NIST NVDAV:N/AC:M/Au:S/C:N/I:P/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1565.001Stored Data Manipulation

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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