CVE-2020-2950Network attack vector

Unauthenticated code execution via AMF deserialization

Published Apr 15, 2020 · Updated Sep 27, 2024

Deserialization in Oracle BI EE 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0 allows remote attackers to execute arbitrary code via HTTP. The BIRemotingServlet accepts user-supplied AMF data without proper validation and deserializes it as trusted objects. Authentication and user interaction are not required, and successful exploitation runs code as the service account, enabling product takeover.

CVSS severity9.8
Critical
EPSS probability71.03%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Oracle BI EE 5.5.0.0.0, 11.1.1.9.0, 12.2.1.3.0, and 12.2.1.4.0 allows remote attackers to execute arbitrary code via HTTP. The BIRemotingServlet accepts user-supplied AMF data without proper validation and deserializes it as trusted objects. Authentication and user interaction are not required, and successful exploitation runs code as the service account, enabling product takeover.

The record

CVE
CVE-2020-2950
Published
Apr 15, 2020
Updated
Sep 27, 2024
Vendor
Oracle
Product
Oracle Business Intelligence Enterprise Edition
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

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=11.1.1.9.0
  2. Affected versionversion=12.2.1.3.0
  3. Affected versionversion=12.2.1.4.0
  4. Affected versionversion=5.5.0.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Oracle · Oracle Business Intelligence Enterprise Editionversion=11.1.1.9.0; version=12.2.1.3.0; version=12.2.1.4.0; version=5.5.0.0.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8OracleCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
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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