---
id: "CVE-2026-116506"
kind: "vulnerability"
aliases: ["CVE-2026-116506"]
title: "TOTOLINK A950RG router: firewall.so command injection allows remote code execution"
severity: "critical"
cvss: 9.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["firmware", "infrastructure", "iot", "router", "totolink"]
not_affected_if: ["other-firmware-versions", "other-models"]
published_at: "2026-10-26T21:18:13+00:00"
first_seen_at: "2026-10-26T21:20:31+00:00"
updated_at: "2026-10-26T21:21:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116506", "first_seen_at": "2026-10-26T21:20:31+00:00"}]
---

# TOTOLINK A950RG router: firewall.so command injection allows remote code execution

TOTOLINK A950RG firmware 4.1.2cu.5268_B20221104 has a command injection flaw in the apmib_set function of firewall.so. A remote attacker can inject operating system commands and run them on the router.

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

## How to check

- Check the firmware version on the router's admin page or with the vendor tools; compare it to `4.1.2cu.5268_B20221104`
- unknown

## Fix

- unknown

## Timeline

- 2026-10-26T21:20:31+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116506

## From the sources

A vulnerability was determined in TOTOLINK A950RG 4.1.2cu.5268_B20221104. Affected is the function apmib_set of the file firewall.so. This manipulation causes command injection. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized.

---

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