CVE-2023-39013Public exploitNetwork attack vector

Remote code execution via unchecked JNDI path

Published Jul 28, 2023 · Updated Oct 22, 2024

Code injection in Duke 1.2 and earlier allows remote attackers to execute arbitrary code through a crafted timer JNDI path. CommonJTimer.init(Properties) passes the unvalidated duke.timer-jndipath property to a JNDI lookup, allowing an LDAP or RMI endpoint to supply attacker-controlled code. Exploitation requires an application to pass attacker-controlled timer properties into the initializer; successful execution runs with the application's privileges.

CVSS severity9.8
Critical
EPSS probability0.89%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Duke 1.2 and earlier allows remote attackers to execute arbitrary code through a crafted timer JNDI path. CommonJTimer.init(Properties) passes the unvalidated duke.timer-jndipath property to a JNDI lookup, allowing an LDAP or RMI endpoint to supply attacker-controlled code. Exploitation requires an application to pass attacker-controlled timer properties into the initializer; successful execution runs with the application's privileges.

The record

CVE
CVE-2023-39013
Published
Jul 28, 2023
Updated
Oct 22, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-94, CWE-74, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 28, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 22, 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

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.

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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 exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1190Exploit Public-Facing Application

Public exploit references

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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