TI-2025-05964 Aliases CVE-2025-6566 GHSA-7c5x-vxj3-93v9

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

HIGH 70CWE-119Published 2025-06-24 · Updated 2025-06-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00799 56th percentileScored 2026-11-07

Public exploit Yes 2 exploit referencesTagged by NVD and the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
oatpp	Oat++	1.3.0; 1.3.1	—	No fix listed	CNA

Oat++ Vendoroatpp Affected 1.3.0; 1.3.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:oatpp:oat\+\+::::::::	up to 1.3.1	Vulnerable	oatpp

cpe:2.3:a:oatpp:oat\+\+:*:*:*:*:*:*:*:* Versions up to 1.3.1 Vulnerable ·oatpp

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-6566
2026-10-03 Alias added: GHSA-7c5x-vxj3-93v9

References

Exploit 2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences