CVE-2025-6566 - CVE House
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Status published Medium CVE-2025-6566

oatpp Oat++ Deserializer.cpp deserializeArray stack-based overflow

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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • JJLeo (VulDB User)

References

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CVE-2025-6515
Reuse of session IDs in oatpp-mcp leads to session hijacking and prompt hijacking by remote attackers
Medium 6.8

Affected Vendor

Affected Software

Oat++
Vulnerable Versions:
1.3.0, 1.3.1

Timeline

Official Publish: June 24th, 2025
Last Modified: June 24th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Weaknesses (CWE)

CWE-121 CWE-119

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application
Initial Access
T1068 Exploitation for Privilege Escalation
Privilege Escalation
T1055 Process Injection
Defense Evasion
T1105 Ingress Tool Transfer
Command and Control
T1485 Data Destruction
Impact
T1203 Exploitation for Client Execution
Execution