CVE-2020-2556

What it is

Vulnerability in the Primavera P6 Enterprise Project Portfolio Management product of Oracle Construction and Engineering (component: Core). Supported versions that are affected are 16.2.0.0-16.2.19.0, 17.12.0.0-17.12.16.0, 18.8.0.0-18.8.16.0, 19.12.0.0 and 20.1.0.0. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Primavera P6 Enterprise Project Portfolio Management executes to compromise Primavera P6 Enterprise Project Portfolio Management. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Primavera P6 Enterprise Project Portfolio Management, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Primavera P6 Enterprise Project Portfolio Management accessible data as well as unauthorized read access to a subset of Primavera P6 Enterprise Project Portfolio Management accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Primavera P6 Enterprise Project Portfolio Management. CVSS 3.0 Base Score 7.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L).

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account, but needs a user to act. High risk of data tampering.

Exploit odds

0.4% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2020-01-15 17:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 03:12 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.4% in the next 30 days (EPSS).
• Severity: 7.3 HIGH (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2020-01-15 17:15 UTC

Last modified

2026-06-17 03:12 UTC

Exploit probability

0.4% · EPSS, next 30 days

Record status

Modified

Affected

• Oracle Primavera p6 Enterprise Project Portfolio Management ≤ 16.2.19.0
• Oracle Primavera p6 Enterprise Project Portfolio Management ≤ 17.12.16.0
• Oracle Primavera p6 Enterprise Project Portfolio Management ≤ 18.8.16.0
• Oracle Primavera p6 Enterprise Project Portfolio Management 19.12.0.0
• Oracle Primavera p6 Enterprise Project Portfolio Management 20.1.0.0

Attack profile CVSS 3.1 · 7.3

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

High

Availability

Low

Is it in your code?

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