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CVE-2025-6566— oatpp Oat++ Deserializer.cpp deserializeArray stack-based overflow

Quick assessment

Affected
oatpp Oat++
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.

Oat++是Oat++开源的一个C++web框架，用于高度可扩展和资源高效的web应用程序。 oatpp Oat++ 1.3.1及之前版本存在安全漏洞，该漏洞源于Deserializer.cpp中deserializeArray函数存在栈缓冲区溢出问题。

CVSS 5.3 · Medium EPSS 0.70% · P51

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-6566

Vulnerability Information
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Vulnerability Title
oatpp Oat++ Deserializer.cpp deserializeArray stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in oatpp Oat++ up to 1.3.1. It has been declared as critical. This vulnerability affects the function deserializeArray of the file src/oatpp/json/Deserializer.cpp. The manipulation leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Oat++ 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Oat++是Oat++开源的一个C++web框架，用于高度可扩展和资源高效的web应用程序。 oatpp Oat++ 1.3.1及之前版本存在安全漏洞，该漏洞源于Deserializer.cpp中deserializeArray函数存在栈缓冲区溢出问题。
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
oatpp Oat++ 1.3.0 -

II. Public POCs for CVE-2025-6566

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III. Intelligence Information for CVE-2025-6566

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Other References for CVE-2025-6566 (1)

IV. Related Vulnerabilities

Same vendor: oatpp
Same weakness: CWE-121

V. Comments for CVE-2025-6566

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