CVE-2023-54398

Yonyou U8 Cloud Java Deserialization RCE via FileManageServlet

Published: Sep 15, 2026Updated: Sep 24, 2026 Sources: CVE List NVDCWE-502

9.8CRITICAL

Description

Yonyou U8 Cloud contains an unauthenticated Java deserialization vulnerability in the nc.impl.pub.filesystem.FileManageServlet component that allows remote unauthenticated attackers to execute arbitrary OS commands by sending a serialized payload via POST request. Attackers can exploit the doAction method, which passes raw HTTP request body data directly to ObjectInputStream.readObject() without filtering, to achieve remote code execution. Exploitation evidence was first observed by the Shadowserver Foundation on 2025-02-13.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:HConfidentiality

High

I:HIntegrity

High

A:HAvailability

High

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Weaknesses

CWE-502

Affected Products

Yonyou

commercial·CNaka ufida erp-nc, ufida

U8 CloudMixed

Enterprise Software / erp

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

3 techniques

Execution

Initial Access

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References

https://security.yonyou.com/#/noticeInfo?id=400

security.yonyou.com

https://cn-sec.com/archives/2182384.html

cn-sec.com

https://blog.csdn.net/qq_41904294/article/details/134277353

blog.csdn.net

and 3 more references View all →

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