{"id":"CVE-2026-8619","state":"PUBLISHED","title":"Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600","description":"An\nunauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions\nthat may lead to a NULL pointer dereference. \nA remote attacker on an adjacent network can send a specially crated\nHTTP request to trigger a crash of the HTTP service process.\n\n\n\n\n\nSuccessful\nexploitation may cause the HTTP service to crash, making the web management\ninterface and HTTP-dependent functionality temporarily unavailable.","publishedAt":"2026-08-19T23:11:51.163Z","updatedAt":"2026-08-20T16:27:30.130Z","severity":{"score":7.1,"label":"High","version":"4.0","vector":"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","source":"TPLink"},"assigner":"TPLink","products":["TP-Link Systems Inc. TL-MR100 v3.2","TP-Link Systems Inc. TL-MR150 v.3.2","TP-Link Systems Inc. TL-MR6400 v8.0","TP-Link Systems Inc Archer MR600 v2"],"affected":[{"vendor":"TP-Link Systems Inc.","product":"TL-MR100 v3.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc.","product":"TL-MR150 v.3.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc.","product":"TL-MR6400 v8.0","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc","product":"Archer MR600 v2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"Archer MR600(EU)_V2_1.10.0 Build 260618","versionType":"custom"}],"platforms":["Linux"]}],"references":["https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware","https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware","https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware","https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware","https://www.tp-link.com/us/support/faq/5253/"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/8xxx/CVE-2026-8619.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-8619","state":"PUBLISHED","datePublished":"2026-08-19T23:11:51.163Z","dateUpdated":"2026-08-20T16:27:30.130Z","assignerShortName":"TPLink","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateReserved":"2026-05-14T18:04:19.124Z"},"containers":{"cna":{"title":"Unauthenticated Denial-of-Service Vulnerability in HTTP Service in TP-Link TL-MR100, TL-MR150, TL-MR6400 and Archer MR600","descriptions":[{"lang":"en","value":"An\nunauthenticated denial-of-service vulnerability was identified in TP-Link TL-MR100 v3.2, TL-MR150 v3.2, TL-MR6400 v8.0 and Archer MR600 v2, due to improper handling of exceptional request conditions\nthat may lead to a NULL pointer dereference. \nA remote attacker on an adjacent network can send a specially crated\nHTTP request to trigger a crash of the HTTP service process.\n\n\n\n\n\nSuccessful\nexploitation may cause the HTTP service to crash, making the web management\ninterface and HTTP-dependent functionality temporarily unavailable."}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"TL-MR100 v3.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR100(EU)_V3.20_1.3.0 Build 260609 Rel.49957n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc.","product":"TL-MR150 v.3.2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR150(EU)_V3.20_1.3.0 Build 260720 Rel.59727n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc.","product":"TL-MR6400 v8.0","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"TL-MR6400(EN)_V8_1.5.0 Build 260610 Rel.67978n","versionType":"custom"}],"platforms":["Linux"]},{"vendor":"TP-Link Systems Inc","product":"Archer MR600 v2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"Archer MR600(EU)_V2_1.10.0 Build 260618","versionType":"custom"}],"platforms":["Linux"]}],"references":[{"url":"https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-mr100/v3.20/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-mr150/v3.20/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-mr6400/v8/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5253/","tags":["vendor-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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","description":"CWE-476 NULL pointer dereference","type":"CWE"}]}],"providerMetadata":{"shortName":"TPLink","orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","dateUpdated":"2026-08-19T23:11:51.163Z"},"impacts":[{"capecId":"CAPEC-125","descriptions":[{"lang":"en","value":"CAPEC-125 Flooding"}]}],"credits":[{"lang":"en","value":"haehet","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.4"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-8619","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-08-20T16:03:32.689670Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-20T16:27:30.130Z"}}]}}}