---
id: "CVE-2026-10132"
kind: "vulnerability"
aliases: ["CVE-2026-10132"]
title: "TOTOLINK X2000R router: stack overflow in web setup lets attackers run code"
severity: "critical"
cvss: 9.1
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: [{"name": "X2000R", "fixed": [], "affected": "TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327", "ecosystem": "vendor"}]
ecosystems: []
tags: ["firmware", "infrastructure", "iot", "router", "self-hosted", "totolink", "x2000r"]
not_affected_if: ["auth-required"]
published_at: "2026-10-20T21:17:15+00:00"
first_seen_at: "2026-10-23T21:57:21+00:00"
updated_at: "2026-10-23T23:18:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10132", "first_seen_at": "2026-10-23T21:57:21+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-10-23T23:18:01+00:00"}]
---

# TOTOLINK X2000R router: stack overflow in web setup lets attackers run code

Authenticated stack-based buffer overflow in the boa web server's formIpQos handler on the TOTOLINK X2000R. The 'mac' POST parameter (used with sqosadvAdd=1) is strcpy'd into a 0x22-byte stack buffer. A logged-in attacker gets code execution as root-level boa process. Talos reproduced control of the PC. CVSS 9.1. No vendor patch is published.

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

## Affected

- vendor:X2000R affected TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 fixed ?

## How to check

In the router admin UI (System/Status page) read the firmware version. If it is TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327 you are affected. Also check whether the admin interface is reachable from WAN (remote management setting).

## Fix

No fixed firmware published as of 2026-10-23. Mitigate: turn off WAN/remote management, restrict the admin UI to a trusted LAN, change the default admin password to a strong unique one, and check totolink.net downloads for X2000R firmware newer than B20250421.1327.

## Timeline

- 2026-10-23T21:57:21+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-10132
- 2026-10-23T23:18:01+00:00 analyst — Read Talos TALOS-2026-2433 (primary, Oct 20 2026) and CVE record: only build B20250421.1327 listed, no vendor fix; vendor acknowledged 2026-06-25 but silent through Sep 15 follow-up. No exploitation or public PoC found; VulDB says no exploit. Social search skipped (no product-name conversation expected).

## Documents

- [advisory] TALOS-2026-2433 Totolink X2000R formIpQos mac stack overflow https://talosintelligence.com/vulnerability_reports/TALOS-2026-2433
- [describes] CVE Record CVE-2026-10132 https://www.cve.org/CVERecord?id=CVE-2026-10132

## From the sources

A stack-based buffer overflow vulnerability exists in the boa formIpQos mac functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

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