{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-0918","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-01-13T19:43:58.914Z","datePublished":"2026-01-27T17:52:04.348Z","dateUpdated":"2026-04-29T00:05:42.816Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-04-29T00:05:42.816Z"},"title":"Null Pointer Dereference in Tapo SmartCam HTTP Service on TP-Link Tapo C220 & C520WS","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-476","description":"CWE-476 NULL Pointer Dereference","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Tapo C220 v1","modules":["http service"],"versions":[{"status":"affected","version":"0","lessThan":"1.4.2 Build 251112","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"Tapo C520WS v2","versions":[{"status":"affected","version":"0","lessThan":"1.2.3 Build 251114","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"Tapo C100 v5","versions":[{"status":"affected","version":"0","lessThan":"1.4.3 Build 251128","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable.","supportingMedia":[{"type":"text/html","base64":false,"value":"The Tapo C100 v5, C220 v1 and C520WS v2 cameras’ HTTP service does not safely handle POST requests containing an excessively large Content-Length header. The resulting failed memory allocation triggers a NULL pointer dereference, causing the main service process to crash. An unauthenticated attacker can repeatedly crash the service, causing temporary denial of service. The device restarts automatically, and repeated requests can keep it unavailable."}]}],"references":[{"url":"https://www.tp-link.com/us/support/download/tapo-c220/v1.60/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c220/v1/","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/download/tapo-c520ws/v2/","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tapo-c520ws/v2/","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/4923/","tags":["vendor-advisory"]},{"url":"https://www.tp-link.com/us/support/download/tapo-c100/v5/","tags":["patch"]},{"url":"https://www.crac-learning.com/post/smart-home-security-research-cve-2026-0918-assigned","tags":["third-party-advisory"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED","version":"4.0","baseSeverity":"HIGH","baseScore":7.1,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"Diogo Almeida @NeWbie","type":"finder"},{"lang":"en","value":"Azim Javed & Ayushman Agrawal Hingorani from CRAC Learning","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-27T18:07:03.278112Z","id":"CVE-2026-0918","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-27T18:07:32.574Z"}}]}}