{"id":"CVE-2022-40799","kind":"vulnerability","aliases":["CVE-2022-40799"],"related":[],"title":"dlink dnr-322l firmware: Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute…","description":"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.\n\nCISA 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.","summary":"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.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2025-08-05T00:00:00+00:00","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"],"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.","status":"open","published_at":"2022-11-29T05:15:11+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:46:37+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.7,"triage":{"at":"2026-10-23T20:46:37Z","model":"claude-haiku-5-5","output":{"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.","reach":"unknown","summary":"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.","category":"infrastructure","who_cares":["d-link","dnr-322l","nvr","iot"],"confidence":0.7,"needs_auth":"yes","worst_case":"Attacker runs OS commands on the recorder after logging in.","analyst_note":"Find the vendor advisory or CISA mitigation details for the DNR-322L and confirm whether any firmware fix exists, since the product may be end-of-life.","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.","needs_analyst":true,"not_affected_if":["no-dnr-322l-deployed"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000456,"input_tokens":2580,"output_tokens":395,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-01':143C '-2022':28A,31A '-40799':29A,32A '2.60':19A '22':142C '322l':4A,18A,38A,42A,49B,60B,86C 'action':133C 'allow':21A,98C 'and/or':120C 'appli':134C 'applic':140C 'attack':24A,72B,101C 'authent':23A,71B,100C 'b15':20A 'backup':10A 'bod':141C 'check':94C 'cisa':131C 'cloud':146C 'code':65B,91C 'command':77B,106C 'config':11A 'contain':87C 'could':97C,113C 'cve':27A,30A 'd':14A,34A,45B,56B,82C 'd-link':13A,33A,44B,55B,81C 'data':6A 'devic':80B,109C 'discontinu':128C,149C 'dlink':1A,39A 'dnr':3A,17A,37A,41A,48B,59B,85C 'dnr-322l':2A,16A,36A,40A,47B,58B,84C 'download':64B,89C 'end':116C,122C 'end-of-lif':115C 'end-of-servic':121C 'eo':125C 'eol':119C 'execut':26A,103C 'exploit':50B 'failur':8A 'firmwar':5A 'firmware':43A 'follow':139C 'guidanc':144C 'impact':111C 'infrastructur':51B 'instruct':138C 'integr':7A,69B,93C 'iot':52B 'level':105C 'life':118C 'link':15A,35A,46B,57B,83C 'mitig':135C,155C 'network':61B 'nvr':53B 'oper':75B 'os':104C 'per':136C 'product':112C,129C,153C 'record':63B 'requir':132C 'run':74B 'servic':124C,147C 'system':76B 'unavail':157C 'use':150C 'user':126C 'util':130C 'vendor':137C 'verifi':67B 'video':62B 'vulner':95C 'without':66B,92C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2022-11-29T05:15:11+00:00","kev":{"dateAdded":"2025-08-05","dueDate":"2025-08-26","requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2022-40799","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2022-40799","severity":null,"published_at":"2025-08-05T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T15:39:40+00:00","note":null},{"source":"nvd","external_id":"CVE-2022-40799","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-40799","severity":null,"published_at":"2022-11-29T05:15:11+00:00","modified_at":"2026-06-17T05:02:02+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}