CVE-2021-2155Network attack vector

Unauthenticated modification of accessible data

Published Apr 22, 2021 · Updated Sep 26, 2024

An unspecified flaw in Oracle One-to-One Fulfillment 12.1.1 through 12.1.3 and 12.2.3 through 12.2.10 allows remote attackers to alter data. Oracle identifies only the Documents component and has not published the affected request handler or the operation it performs incorrectly. Exploitation is unauthenticated over HTTP but requires another person to interact, after which some accessible data can be updated, inserted, or deleted.

CVSS severity4.3
Medium
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An unspecified flaw in Oracle One-to-One Fulfillment 12.1.1 through 12.1.3 and 12.2.3 through 12.2.10 allows remote attackers to alter data. Oracle identifies only the Documents component and has not published the affected request handler or the operation it performs incorrectly. Exploitation is unauthenticated over HTTP but requires another person to interact, after which some accessible data can be updated, inserted, or deleted.

The record

CVE
CVE-2021-2155
Published
Apr 22, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle One-to-One Fulfillment
Classifications
Unavailable
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=12.1.1-12.1.3
  2. Affected versionversion=12.2.3-12.2.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle Corporation · Oracle One-to-One Fulfillmentversion=12.1.1-12.1.3; version=12.2.3-12.2.10

Published CVSS scores

4.3Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/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
Privilegesunauthenticated
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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