---
id: "CVE-2022-40799"
kind: "vulnerability"
aliases: ["CVE-2022-40799"]
title: "dlink dnr-322l firmware: Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute\u2026"
severity: "high"
cvss: 8.8
epss: null
exploited: true
status: "open"
category: "infrastructure"
products: [{"name": "D-Link DNR-322L", "fixed": [], "affected": "", "ecosystem": "vendor"}, {"name": "dlink dnr-322l firmware", "fixed": [], "affected": "<= 2.60b15", "ecosystem": "vendor"}]
ecosystems: ["vendor"]
tags: ["d-link", "dnr-322l", "exploited", "infrastructure", "iot", "nvr"]
not_affected_if: ["no-dnr-322l-deployed"]
published_at: "2022-11-29T05:15:11+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-2022-40799", "first_seen_at": "2026-10-23T19:11:51+00:00"}, {"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40799", "first_seen_at": "2026-10-23T22:29:05+00:00"}]
---

# dlink dnr-322l firmware: Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute…

The D-Link DNR-322L network video recorder downloads code without verifying its integrity. An authenticated attacker can run operating system commands on the device.

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

## Affected

- vendor:D-Link DNR-322L affected ? fixed ?
- vendor:dlink dnr-322l firmware affected <= 2.60b15 fixed ?

## How to check

Identify any D-Link DNR-322L units on the network and confirm the model. The sources do not give a firmware version or a setting to check.

## Fix

Apply the vendor mitigations per CISA guidance, or discontinue use of the device if no mitigation is available. The product may be end-of-life and end-of-service, so no vendor fix is confirmed.

## Timeline

- 2026-10-23T19:11:51+00:00 kev https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-40799
- 2026-10-23T22:29:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2022-40799

## From the sources

D-Link DNR-322L contains a download of code without integrity check vulnerability that could allow an authenticated attacker to execute OS level commands on the device. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

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.

---

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