CVE-2023-46279Network attack vector

Remote code execution via bypassed deny-list check

Published Dec 15, 2023 · Updated Feb 13, 2025

Deserialization of Untrusted Data in Apache Dubbo 3.1.5 allows remote attackers to execute code via crafted serialized requests. The PojoUtils type-resolution path loads attacker-supplied class names without enforcing the deny-list, allowing unsafe objects to reach deserialization. Any network client able to invoke an exposed Dubbo service can trigger the flaw, with potential code execution and system compromise.

CVSS severity9.8
Critical
EPSS probability1.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of Untrusted Data in Apache Dubbo 3.1.5 allows remote attackers to execute code via crafted serialized requests. The PojoUtils type-resolution path loads attacker-supplied class names without enforcing the deny-list, allowing unsafe objects to reach deserialization. Any network client able to invoke an exposed Dubbo service can trigger the flaw, with potential code execution and system compromise.

The record

CVE
CVE-2023-46279
Published
Dec 15, 2023
Updated
Feb 13, 2025
Vendor
The Apache Software Foundation
Product
Apache Dubbo
Classifications
CWE-502, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.1.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Dubboversion=3.1.5

Published CVSS scores

9.8GitLab Advisory 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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
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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