CVE-2020-2963Network attack vector

Authenticated server takeover via undisclosed Web Services flaw

Published Apr 15, 2020 · Updated Sep 27, 2024

An undisclosed flaw in Oracle WebLogic Server Web Services allows remote authenticated users to take over affected servers via T3 or IIOP. Oracle has not published the vulnerable class, method, input structure, or incorrect operation performed by the Web Services component. Exploitation requires high privileges and network access to an affected protocol, and successful exploitation compromises the entire server.

CVSS severity7.2
High
EPSS probability1.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

An undisclosed flaw in Oracle WebLogic Server Web Services allows remote authenticated users to take over affected servers via T3 or IIOP. Oracle has not published the vulnerable class, method, input structure, or incorrect operation performed by the Web Services component. Exploitation requires high privileges and network access to an affected protocol, and successful exploitation compromises the entire server.

The record

CVE
CVE-2020-2963
Published
Apr 15, 2020
Updated
Sep 27, 2024
Vendor
Oracle Corporation
Product
Oracle WebLogic Server
Classifications
T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 15, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.3.6.0.0
  2. Affected versionversion=12.1.3.0.0
  3. Affected versionversion=12.2.1.3.0
  4. Affected versionversion=12.2.1.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Oracle Corporation · Oracle WebLogic Serverversion=10.3.6.0.0; version=12.1.3.0.0; version=12.2.1.3.0; version=12.2.1.4.0

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2OracleCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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