---
id: "CVE-2024-0769"
kind: "vulnerability"
aliases: ["CVE-2024-0769"]
title: "dlink dir-859 firmware: ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DIR-859 1.06B01"
severity: "critical"
cvss: 9.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "D-Link DIR-859 Router", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "dlink dir-859 firmware", "fixed": [], "affected": "= 1.06", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["d-link", "dir-859", "exploited", "infrastructure", "routers", "self-hosted"]
not_affected_if: ["no-dir-859-in-use"]
published_at: "2024-01-21T08:15:07+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-2024-0769", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-0769", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# dlink dir-859 firmware: ** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DIR-859 1.06B01

D-Link DIR-859 routers have a path traversal flaw in the /hedwig.cgi HTTP POST handler that lets a remote request read files such as session data. An attacker can use leaked session data to take over the router and gain control of the device.

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

## Affected

- vendor:D-Link DIR-859 Router affected ? fixed ?
- vendor:dlink dir-859 firmware affected = 1.06 fixed ?

## How to check

Identify any D-Link DIR-859 router on the network, including its hardware revision and firmware version.

## Fix

Retire and replace the device per vendor instructions, since all hardware revisions are end-of-life or end-of-service.
If replacement is not possible, discontinue use of the product as CISA advises when mitigations are unavailable.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-0769
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2024-0769

## From the sources

D-Link DIR-859 routers contain a path traversal vulnerability in the file /hedwig.cgi of the component HTTP POST Request Handler. Manipulation of the argument service with the input ../../../../htdocs/webinc/getcfg/DHCPS6.BRIDGE-1.xml allows for the leakage of session data potentially enabling privilege escalation and unauthorized control of the device. This vulnerability affects legacy D-Link products. All associated hardware revisions have reached their end-of-life (EOL) or end-of-service (EOS) life cycle and should be retired and replaced per vendor instructions.

CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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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_