CVE-2023-41331Network attack vector

Remote command execution via incomplete deserialization blacklist

Published Sep 12, 2023 · Updated Sep 25, 2024

Deserialization in SOFAStack SOFARPC before 5.11.0 allows remote attackers to execute commands through crafted RPC payloads. The default deserialization path checks classes against an incomplete blacklist, leaving native JDK and included third-party classes usable in gadget chains. No authentication or user interaction is required; successful delivery permits JNDI injection or system command execution in the hosting application.

CVSS severity9.8
Critical
EPSS probability1.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in SOFAStack SOFARPC before 5.11.0 allows remote attackers to execute commands through crafted RPC payloads. The default deserialization path checks classes against an incomplete blacklist, leaving native JDK and included third-party classes usable in gadget chains. No authentication or user interaction is required; successful delivery permits JNDI injection or system command execution in the hosting application.

The record

CVE
CVE-2023-41331
Published
Sep 12, 2023
Updated
Sep 25, 2024
Vendor
SOFAStack
Product
SOFARPC
Classifications
CWE-917, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 12, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 25, 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=< 5.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SOFAStack · SOFARPCversion=< 5.11.0

Published CVSS scores

9.8GitHub, Inc.CVSS: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 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-917Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language 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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