CVE-2021-1995Network attack vector

Low-privilege modification of server-accessible data

Published Jan 20, 2021 · Updated Sep 26, 2024

A Web Services flaw in Oracle WebLogic Server 10.3.6.0.0 and 12.1.3.0.0 allows remote authenticated users to modify accessible data. Oracle has not published the affected Web Services locus or the operation that mishandles an HTTP request. Low-privilege WebLogic credentials and HTTP network access are required; successful exploitation can create, delete, or modify any data accessible to the server, without reported disclosure or service interruption.

CVSS severity6.5
Medium
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A Web Services flaw in Oracle WebLogic Server 10.3.6.0.0 and 12.1.3.0.0 allows remote authenticated users to modify accessible data. Oracle has not published the affected Web Services locus or the operation that mishandles an HTTP request. Low-privilege WebLogic credentials and HTTP network access are required; successful exploitation can create, delete, or modify any data accessible to the server, without reported disclosure or service interruption.

The record

CVE
CVE-2021-1995
Published
Jan 20, 2021
Updated
Sep 26, 2024
Vendor
Oracle Corporation
Product
Oracle WebLogic Server
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 20, 2021CVE publishedPublication date reported by the CVE source.
  2. Sep 26, 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?

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  1. Affected versionversion=10.3.6.0.0
  2. Affected versionversion=12.1.3.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

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

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
6.5Oracle CorporationCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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