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CVE-2025-34127— Achat v0.150 SEH Buffer Overflow via UDP

Quick assessment

Affected
Achat Software Achat Chat Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Achat是Achat开源的一个开源聊天软件。 Achat v0.150版本存在安全漏洞，该漏洞源于栈缓冲区溢出，可能导致远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 1.12% · P64

Public Exploits 1

Metasploit · 1 achat_bof.rb [exploit]

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution
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I. Basic Information for CVE-2025-34127

Vulnerability Information
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Vulnerability Title
Achat v0.150 SEH Buffer Overflow via UDP
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow exists in Achat v0.150 in its default configuration. By sending a specially crafted message to the UDP port 9256, an attacker can overwrite the structured exception handler (SEH) due to insufficient bounds checking on user-supplied input leading to remote code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Achat 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Achat是Achat开源的一个开源聊天软件。 Achat v0.150版本存在安全漏洞，该漏洞源于栈缓冲区溢出，可能导致远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Achat Software Achat Chat Server 0.150 -

II. Public POCs for CVE-2025-34127

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III. Intelligence Information for CVE-2025-34127

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IV. Related Vulnerabilities

Same weakness: CWE-121

V. Comments for CVE-2025-34127

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