---
id: "CVE-2016-20017"
kind: "vulnerability"
aliases: ["CVE-2016-20017"]
title: "dlink dsl-2750b firmware: D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter,\u2026"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "D-Link DSL-2750B Devices", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "dlink dsl-2750b firmware", "fixed": ["1.05"], "affected": "< 1.05", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["d-link", "dsl-2750b", "exploited", "home-router", "infrastructure", "isp-cpe"]
not_affected_if: ["device-replaced", "not-dsl-2750b"]
published_at: "2022-10-19T05:15:08+00:00"
first_seen_at: "2026-10-23T19:11:51+00:00"
updated_at: "2026-10-23T22:29:05+00:00"
sources: [{"source": "kev", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2016-20017", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-20017", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# dlink dsl-2750b firmware: D-Link DSL-2750B devices before 1.05 allow remote unauthenticated command injection via the login.cgi cli parameter,…

D-Link DSL-2750B DSL routers have a command injection flaw in the login.cgi cli parameter. An unauthenticated remote attacker can run arbitrary commands on the device.

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

## Affected

- vendor:D-Link DSL-2750B Devices affected ? fixed ?
- vendor:dlink dsl-2750b firmware affected < 1.05 fixed 1.05

## Fix

Apply mitigations per vendor instructions, or discontinue use of the device if mitigations are unavailable (per CISA KEV).

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2016-20017
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2016-20017

## From the sources

D-Link DSL-2750B devices contain a command injection vulnerability that allows remote, unauthenticated command injection via the login.cgi cli parameter.

CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

---

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