---
id: "CVE-2026-120226"
kind: "vulnerability"
aliases: ["CVE-2026-120226"]
title: "Xiongmai P2PAPI.dll: buffer overflow in P2PAPI_Connect on Windows"
severity: "low"
cvss: 3.3
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["iot-cameras", "other", "p2p-sdk", "windows", "xiongmai"]
not_affected_if: ["no-local-access-by-attacker", "no-p2papi-dll-installed"]
published_at: "2026-11-01T12:17:09+00:00"
first_seen_at: "2026-11-01T12:19:56+00:00"
updated_at: "2026-11-01T12:21:20+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-120226", "first_seen_at": "2026-11-01T12:19:56+00:00"}]
---

# Xiongmai P2PAPI.dll: buffer overflow in P2PAPI_Connect on Windows

A buffer overflow in the P2PAPI_Connect function of Xiongmai's P2PAPI.dll 1.3.3.32 P2P SDK on Windows can be triggered by a crafted input string. The sources say an attacker must be on the local machine, and a public exploit has been disclosed.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Look for `P2PAPI.dll` on Windows machines and check its version: 1.3.3.32 is the affected version named in the sources.
- Check whether any installed application loads `P2PAPI.dll` from the Xiongmai P2P SDK.

## Timeline

- 2026-11-01T12:19:56+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-120226

## From the sources

A security vulnerability has been detected in Hangzhou Xiongmai Technology P2PAPI.dll 1.3.3.32 on Windows. Affected by this issue is the function P2PAPI_Connect of the component P2P SDK. Such manipulation of the argument input as part of String leads to buffer overflow. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_