CVE-2020-9761Network attack vector

Remote code execution via RMI garbage collection

Published Mar 4, 2020 · Updated Aug 4, 2024

Insecure configuration in UNCTAD ASYCUDA World 2001 through 2020 allows remote attackers to execute Java code from a remote URL. The exposed Java RMI server invokes a Distributed Garbage Collector method that causes the runtime to load attacker-controlled code from a remote URL. No authentication or user interaction is required when the RMI service is network-reachable, and successful execution grants control in the server process context.

CVSS severity9.8
Critical
EPSS probability2.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure configuration in UNCTAD ASYCUDA World 2001 through 2020 allows remote attackers to execute Java code from a remote URL. The exposed Java RMI server invokes a Distributed Garbage Collector method that causes the runtime to load attacker-controlled code from a remote URL. No authentication or user interaction is required when the RMI service is network-reachable, and successful execution grants control in the server process context.

The record

CVE
CVE-2020-9761
Published
Mar 4, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 4, 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?

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

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/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

T1210Exploitation of Remote Services

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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