CVE-2021-2115Network attack vector

Authenticated data disclosure and modification

Published Jan 20, 2021 · Updated Sep 26, 2024

Access flaw in Oracle Common Applications Calendar 12.1.1 through 12.1.3 and 12.2.3 through 12.2.10 allows remote authenticated users to read data. Oracle has not published the defective operation or input path within the Tasks component. Exploitation requires a low-privileged account, HTTP access, and another person's interaction, and exposes critical or all accessible calendar data while permitting some inserts, updates, or deletions.

CVSS severity7.6
High
EPSS probability0.93%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access flaw in Oracle Common Applications Calendar 12.1.1 through 12.1.3 and 12.2.3 through 12.2.10 allows remote authenticated users to read data. Oracle has not published the defective operation or input path within the Tasks component. Exploitation requires a low-privileged account, HTTP access, and another person's interaction, and exposes critical or all accessible calendar data while permitting some inserts, updates, or deletions.

The record

CVE
CVE-2021-2115
Published
Jan 20, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle Common Applications Calendar
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 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?

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 privilegesauthenticated

What is affected?

Oracle Corporation · Oracle Common Applications Calendarversion=12.1.1-12.1.3; version=12.2.3-12.2.10

Published CVSS scores

7.6Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
4.9NIST NVDAV:N/AC:M/Au:S/C:P/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

No sourced classifications are available.

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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