CVE-2020-36181Network attack vector

Remote code execution via unblocked DBCP gadget

Published Jan 6, 2021 · Updated Aug 4, 2024

Unsafe deserialization in FasterXML jackson-databind before 2.9.10.8 allows remote attackers to execute code through crafted JSON input. SubTypeValidator omits Tomcat DBCP DriverAdapterCPDS from its prohibited subtype set, allowing polymorphic typing to construct the gadget. Exploitation requires attacker-controlled JSON, enabled polymorphic typing, the gadget class on the classpath, and user interaction.

CVSS severity8.8
High
EPSS probability5.02%
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 before 2.9.10.8 allows remote attackers to execute code through crafted JSON input. SubTypeValidator omits Tomcat DBCP DriverAdapterCPDS from its prohibited subtype set, allowing polymorphic typing to construct the gadget. Exploitation requires attacker-controlled JSON, enabled polymorphic typing, the gadget class on the classpath, and user interaction.

The record

CVE
CVE-2020-36181
Published
Jan 6, 2021
Updated
Aug 4, 2024
Vendor
Debian
Product
Debian GNU/Linux
Classifications
CWE-502, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 2021CVE 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=2.0.0 <2.9.10.8
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

8.8CISA ADP VulnrichmentCVSS: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 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

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution

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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