CVE-2020-14061Network attack vector

Remote code execution via unblocked AQ/JMS gadgets

Published Jun 14, 2020 · Updated Aug 27, 2025

Unsafe deserialization in FasterXML jackson-databind before 2.9.10.5 allows remote attackers to execute arbitrary code. With default typing enabled, the class blocklist fails to reject five Oracle AQ/JMS connection-factory gadget classes selected by attacker-controlled type identifiers. Exploitation requires untrusted JSON, permissive polymorphic typing, and the Oracle AQ/JMS classes on the classpath; successful gadget construction runs code.

CVSS severity8.1
High
EPSS probability4.46%
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 2.9.10.5 allows remote attackers to execute arbitrary code. With default typing enabled, the class blocklist fails to reject five Oracle AQ/JMS connection-factory gadget classes selected by attacker-controlled type identifiers. Exploitation requires untrusted JSON, permissive polymorphic typing, and the Oracle AQ/JMS classes on the classpath; successful gadget construction runs code.

The record

CVE
CVE-2020-14061
Published
Jun 14, 2020
Updated
Aug 27, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-502
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 14, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
6.8NIST NVDAV:N/AC:M/Au:N/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 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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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