CVE-2021-37578Network attack vector

Remote code execution via unchecked RMI deserialization

Published Jul 29, 2021 · Updated Aug 4, 2024

Deserialization in Apache jUDDI before 3.3.10 allows remote attackers to execute arbitrary code by sending serialized objects to enabled RMI services. The RMI endpoints use Java default serialization and deserialize invocation parameters without validating incoming object data. RMI and JNDI registration are disabled by default, so exploitation requires an operator-enabled transport; successful exploitation runs code in the jUDDI process.

CVSS severity9.8
Critical
EPSS probability4.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Apache jUDDI before 3.3.10 allows remote attackers to execute arbitrary code by sending serialized objects to enabled RMI services. The RMI endpoints use Java default serialization and deserialize invocation parameters without validating incoming object data. RMI and JNDI registration are disabled by default, so exploitation requires an operator-enabled transport; successful exploitation runs code in the jUDDI process.

The record

CVE
CVE-2021-37578
Published
Jul 29, 2021
Updated
Aug 4, 2024
Vendor
The Apache Software Foundation
Product
Apache jUDDI
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 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=unspecified <3.3.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache jUDDIversion=unspecified <3.3.10

Published CVSS scores

6.8NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:P/I:P/A:P
9.8GitHub Security AdvisoryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST National Vulnerability DatabaseCVSS: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.

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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
CAPEC-586Object Injection
T1190Exploit Public-Facing Application

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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