CVE-2020-11111Network attack vector

Remote code execution via ActiveMQ serialization gadgets

Published Mar 31, 2020 · Updated Aug 4, 2024

Unsafe deserialization in FasterXML jackson-databind 2.x before 2.9.10.4 allows remote attackers to execute code through crafted JSON. When unsafe polymorphic Default Typing resolves attacker-supplied type identifiers, the block list permits ActiveMQ pool gadget classes to be instantiated during data binding. Exploitation requires an application to accept untrusted JSON, enable unsafe Default Typing, include a compatible ActiveMQ library, and involve user interaction.

CVSS severity8.8
High
EPSS probability3.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe deserialization in FasterXML jackson-databind 2.x before 2.9.10.4 allows remote attackers to execute code through crafted JSON. When unsafe polymorphic Default Typing resolves attacker-supplied type identifiers, the block list permits ActiveMQ pool gadget classes to be instantiated during data binding. Exploitation requires an application to accept untrusted JSON, enable unsafe Default Typing, include a compatible ActiveMQ library, and involve user interaction.

The record

CVE
CVE-2020-11111
Published
Mar 31, 2020
Updated
Aug 4, 2024
Vendor
Debian
Product
Debian GNU/Linux
Classifications
CWE-502
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 31, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=8.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Debian · Debian GNU/Linuxversion=8.0
Oracle · Oracle Financial Services Analytical Applications Infrastructureversion=8.0.6 <=8.1.0
Oracle · JD Edwards EnterpriseOne Orchestratorversion=0 <=9.2.4.2
Oracle · Oracle Retail Merchandising Systemversion=15.0
Oracle · Oracle Primavera Unifierversion=16.1; version=16.2; version=17.7 <=17.12; version=18.8; version=19.12
Oracle · Oracle WebLogic Serverversion=12.2.1.3.0 <=12.2.1.4.0
Oracle · Oracle Financial Services Institutional Performance Analyticsversion=8.0.6; version=8.0.7; version=8.1.0
Oracle · Oracle Communications Calendar Serverversion=8.0.0.4.0 <=8.0.0.5.0
Oracle · Oracle Communications Instant Messaging Serverversion=10.0.1.4.0
Oracle · Oracle AutoVue for Agile PLMversion=21.0.2
Oracle · Oracle Retail Service Backboneversion=14.1; version=15.0; version=16.0
Oracle · Oracle Communications Element Managerversion=8.2.0 <=8.2.2
Oracle · Oracle Communications Network Charging and Controlversion=12.0.0 <=12.0.3; version=6.0.1
Oracle · Oracle Enterprise Manager Base Platformversion=13.3.0.0 <=13.4.0.0
Oracle · Oracle Communications Session Route Managerversion=8.2.0 <=8.2.2
Oracle · Oracle Insurance Policy Administration J2EEversion=11.0.2.25 <11.1.0.15
Oracle · Oracle Retail Xstore Point of Serviceversion=15.0 <=19.0
Oracle · Oracle Retail Sales Auditversion=14.1
Oracle · Oracle Agile PLMversion=9.3.6
Oracle · Oracle Communications Diameter Signaling Routerversion=8.0.0 <=8.2.2
FasterXML · jackson-databindversion=0 <2.9.10.4
Oracle · Oracle Financial Services Price Creation and Discoveryversion=8.0.6 <=8.0.7
Oracle · Oracle Financial Services Retail Customer Analyticsversion=8.0.6
Oracle · Oracle Global Lifecycle Management OPatchversion=0 <=12.2.0.1.20
Oracle · Oracle Communications Evolved Communications Application Serverversion=7.1
Oracle · Oracle Banking Digital Experienceversion=18.1 <=18.3; version=19.1 <=19.2; version=20.1; version=2.4.0 <=2.9.0
NetApp · AltaVault Cloud-Integrated Storageversion=*

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

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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