CVE-2020-2820

CVE-2020-2820 is a high-severity vulnerability in Oracle Common Applications Calendar with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Vulnerability in the Oracle Common Applications Calendar product of Oracle E-Business Suite (component: Notes). Supported versions that are affected are 12.1.1-12.1.3 and 12.2.3-12.2.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Common Applications Calendar. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Common Applications Calendar, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Common Applications Calendar accessible data as well as unauthorized update, insert or delete access to some of Oracle Common Applications Calendar accessible data. CVSS 3.0 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).

Frequently asked questions

What is CVE-2020-2820?
Vulnerability in the Oracle Common Applications Calendar product of Oracle E-Business Suite (component: Notes). Supported versions that are affected are 12.1.1-12.1.3 and 12.2.3-12.2.8. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Common Applications Calendar. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Common Applications Calendar, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Common Applications Calendar accessible data as well as unauthorized update, insert or delete access to some of Oracle Common Applications Calendar accessible data. CVSS 3.0 Base Score 8.2 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N).
How severe is CVE-2020-2820?
CVE-2020-2820 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2020-2820 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (67th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-2820?
CVE-2020-2820 affects Oracle Common Applications Calendar. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-2820?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2020-2820 published?
CVE-2020-2820 was published on 2020-04-15 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Oracle Common Applications Calendar

All CVEs affecting Oracle Common Applications Calendar →