9.8

CVE-2020-2551: Oracle Fusion Middleware Unspecified Vulnerability

CVSS: 9.8v3.0CriticalKEVAnalyzed
Published 15-01-2020Last modified 12-01-2026
Open JSON

Vulnerability summary

CVE-2020-2551 is a critical (CVSS 9.8) vulnerability in Oracle Fusion Middleware. It is known to be exploited: CISA lists it, first on 16-11-2023. EPSS estimates a 92.82% chance of exploitation in the next 30 days, higher than 99.8% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.0 (CVE.org)
EPSS score
92.82%
0%100%
Critical · -0.35 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 15-01-2020
    PublishedVulnerability first disclosed.
  2. 16-11-2023
    Added to CISA KEVOracle Fusion Middleware Unspecified Vulnerability
  3. 07-12-2023
    CISA remediation dueApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
  4. 12-01-2026
    Last modifiedVulnerability information updated.

Description

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: WLS Core Components). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0 and 12.2.1.4.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via IIOP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.0 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

92.82%

Chance of exploitation in the next 30 days

Percentile

100%

Versus all other CVEs

30-day change

-0.35 pp

From 93.17% on 18-09-2026

18-09-202618-10-2026
EPSS score
92.82%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
16-11-2023
Federal due date
07-12-2023

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. www.oracle.com/security-alerts/cpujan2020.html nvd.nist.gov/vuln/detail/CVE-2020-2551

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Oracle1 product
Oracle corporation1 product

2 vendors · 2 products

References

2 links