Vulnerability · Published Sep 15, 2026 · Assigned by oracle

CVE-2026-83187

High 7.1

In plain English

A high-severity improper access control in Oracle Common Applications Calendar from Oracle Corporation. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)7.1High

Exploit odds (30 days)0.3%top 79.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Vulnerability in the Oracle Common Applications Calendar product of Oracle E-Business Suite (component: Applications Calendar). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Common Applications Calendar. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Common Applications Calendar accessible data as well as unauthorized read access to a subset of Oracle Common Applications Calendar accessible data. CVSS 3.1 Base Score 7.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N).

Affected products (as reported)

Vendor	Product	Versions
Oracle Corporation	Oracle Common Applications Calendar	12.2.3 – through 12.2.15

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

References

Oracle Advisory vendor-advisory