{"id":"CVE-2026-22220","state":"PUBLISHED","title":"Improper Input Validation Leading to DoS on TP-Link Archer BE230","description":"A lack of proper input validation in the HTTP processing path in TP-Link Archer BE230 v1.2 (web modules) may allow a crafted request to cause the device’s web service to become unresponsive, resulting in a denial of service condition. A network adjacent attacker with high privileges could cause the device’s web interface to temporarily stop responding until it recovers or is rebooted.\nThis issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420.","publishedAt":"2026-02-03T17:15:59.836Z","updatedAt":"2026-02-04T18:32:13.840Z","severity":{"score":6.8,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","source":"TPLink"},"assigner":"TPLink","products":["TP-Link Systems Inc. Archer BE230 v1.2"],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Archer BE230 v1.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.4 Build 20251218 rel.70420","versionType":"custom"}],"modules":["web"]}],"references":["https://www.tp-link.com/us/support/download/archer-be230/v1.20/#Firmware","https://www.tp-link.com/en/support/download/archer-be230/v1.20/#Firmware","https://www.tp-link.com/sg/support/download/archer-be230/v1.20/#Firmware","https://www.tp-link.com/us/support/faq/4941/"],"weaknesses":["CWE-20"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/22xxx/CVE-2026-22220.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-22220","state":"PUBLISHED","datePublished":"2026-02-03T17:15:59.836Z","dateUpdated":"2026-02-04T18:32:13.840Z","assignerShortName":"TPLink","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateReserved":"2026-01-06T18:18:52.126Z"},"containers":{"cna":{"title":"Improper Input Validation Leading to DoS on TP-Link Archer BE230","descriptions":[{"lang":"en","value":"A lack of proper input validation in the HTTP processing path in TP-Link Archer BE230 v1.2 (web modules) may allow a crafted request to cause the device’s web service to become unresponsive, resulting in a denial of service condition. A network adjacent attacker with high privileges could cause the device’s web interface to temporarily stop responding until it recovers or is rebooted.\nThis issue affects Archer BE230 v1.2 < 1.2.4 Build 20251218 rel.70420."}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"Archer BE230 v1.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"1.2.4 Build 20251218 rel.70420","versionType":"custom"}],"modules":["web"]}],"references":[{"url":"https://www.tp-link.com/us/support/download/archer-be230/v1.20/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-be230/v1.20/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/sg/support/download/archer-be230/v1.20/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/4941/","tags":["vendor-advisory"]}],"metrics":[{"cvssV4_0":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"ADJACENT","baseScore":6.8,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"HIGH","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnerabilityResponseEffort":"NOT_DEFINED"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-20","description":"CWE-20 Improper Input Validation","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"TPLink","orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateUpdated":"2026-02-03T17:15:59.836Z"},"credits":[{"lang":"en","type":"finder","value":"zeix"}],"impacts":[{"capecId":"CAPEC-469","descriptions":[{"lang":"en","value":"CAPEC-469 HTTP DoS"}]}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.5.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-04T18:31:02.300086Z","id":"CVE-2026-22220","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-02-04T18:32:13.840Z"}}]}}}