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UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-2551

Oracle Fusion Middleware Unspecified Vulnerability

KEVCRITICAL 9.8EPSS 92.8%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 7 December 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

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 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
92.82% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 16 November 2023 · due 7 December 2023
Affected
oracle/weblogic server
Source
secalert_us@oracle.com
EPSS trend
0%48%95%30 October 2026: 92.82%30 October 202630 October 2026

EPSS 92.8% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

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

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.