{"id":"CVE-2022-40799","published":"2022-11-29T05:15:11Z","modified":"2026-06-17T05:02:02Z","title":"D-Link DNR-322L Download of Code Without Integrity Check Vulnerability","vendor":"D-Link","product":"DNR-322L","tier":"core","eol":null,"description":{"text":"Data Integrity Failure in 'Backup Config' in D-Link DNR-322L <= 2.60B15 allows an authenticated attacker to execute OS level commands on the device.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is a data integrity failure in the Backup Config function of the D-Link DNR-322L network video recorder firmware, which allows code to be downloaded without an integrity check. An attacker with low-privilege authenticated access over the network, requiring no user interaction, can execute operating system level commands on the device.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:31Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.3365,"percentile":0.98381,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-08-05","dueDate":"2025-08-26","ransomware":false,"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.","notes":"https://www.dlink.com/uk/en/products/dnr-322l-cloud-network-video-recorder ; https://nvd.nist.gov/vuln/detail/CVE-2022-40799","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-08-05","exploitedFirstSeen":"2025-08-05","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-08-05"},{"url":"https://www.rapid7.com/cdn/assets/bltbd2f1cd70f9e3e7f/691360b9c91291146f1a5308/threat-landscape-report-q3-2025.pdf","date":"2025-11-12"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"}],"evidenceTotal":3,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-494","name":"Download of Code Without Integrity Check"}],"references":[{"url":"https://gitlab.com/lu-ka/cve-2022-40799","tags":["Exploit","Third Party Advisory"]},{"url":"https://gitlab.com/lu-ka/cve-2022-40799","tags":["Exploit","Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-40799","tags":["US Government Resource"]},{"url":"https://www.dlink.com/uk/en/products/dnr-322l-cloud-network-video-recorder","tags":["Product"]}],"techniques":[{"id":"T1078","name":"Valid Accounts","tactics":["initial-access","persistence","privilege-escalation","stealth"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Requires authenticated attacker credentials, so valid account use","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"allows an authenticated attacker to execute OS level commands","start":72,"end":133}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: OS command execution on the device","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows an authenticated attacker to execute OS level commands on the device","start":72,"end":147}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-44065","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-44065","exploited":true,"exploitedSince":"2025-08-05","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":["https://gitlab.com/lu-ka/cve-2022-40799"],"flow":[{"stage":"exploitation","techniques":["T1078"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2022-11-29","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-40799","provenance":"source"},{"date":"2025-08-05","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","provenance":"source"},{"date":"2025-08-05","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2025-08-05","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-44065","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":980},"priority":{"score":68.8,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 450 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.68,"detail":"percentile 0.9838"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"1 NVD reference tagged Exploit"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]}}