{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12339","assignerOrgId":"f23511db-6c3e-4e32-a477-6aa17d310630","state":"PUBLISHED","assignerShortName":"TPLink","dateReserved":"2026-06-15T15:51:52.827Z","datePublished":"2026-08-10T18:20:50.576Z","dateUpdated":"2026-08-25T23:31:52.397Z"},"containers":{"cna":{"providerMetadata":{"orgId":"f23511db-6c3e-4e32-a477-6aa17d310630","shortName":"TPLink","dateUpdated":"2026-08-25T23:31:52.397Z"},"title":"Authenticated Arbitrary File Write Vulnerability in multiple devices","problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-22","description":"CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","type":"CWE"}]}],"impacts":[{"capecId":"CAPEC-17","descriptions":[{"lang":"en","value":"CAPEC-17 Using Malicious Files"}]}],"affected":[{"vendor":"TP-Link Systems Inc.","product":"TL-MR6400 v5.3","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.10.0 0.9.1 v0001.0 Build 260613 RC.76099n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"Archer MR600 v2","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.10.0 0.9.1 v0001.0 Build 260618 RC.40417n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"Archer MR200 v7","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.3.0 0.9.1 v0001.0 Build 260605 Rel.57870n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"TL-MR6400 v8.0","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.5.0 0.9.1 v0001.0 Build 260610 Rel.67978n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"TL-MR150 v3.20","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.3.0 0.9.1 v0001.0 Build 260720 Rel.59727n","versionType":"custom"}],"defaultStatus":"unaffected"},{"vendor":"TP-Link Systems Inc.","product":"TL-MR100 v3.20","versions":[{"status":"affected","version":"0","lessThan":"(EU)_1.3.0 0.9.1 v0001.0 Build 260609 Rel.49957n","versionType":"custom"},{"status":"affected","version":"0","lessThan":"1.1.0 0.9.1 v0001.0 Build 260609 Rel35479n,  Customized Software for South Korea KT","versionType":"custom"},{"status":"affected","version":"0","lessThan":"1.2.0 0.9.1 v0001.0 Build 260609 Rel.36250n, Customized Software for South Korea Telenor","versionType":"custom"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"A Zip Slip vulnerability in the WebUI ISP\nUpgrade functionality allows arbitrary file write via a crafted archive\ncontaining directory traversal sequences. An authenticated administrator may\noverwrite arbitrary files on the system.Successful\nexploitation may allow arbitrary file to be overwritten on the underlying system, affecting system integrity and availability.","supportingMedia":[{"type":"text/html","base64":false,"value":"A Zip Slip vulnerability in the WebUI ISP\nUpgrade functionality allows arbitrary file write via a crafted archive\ncontaining directory traversal sequences. An authenticated administrator may\noverwrite arbitrary files on the system.<div>Successful\nexploitation may allow arbitrary file to be overwritten on the underlying system, affecting system integrity and availability. </div>"}]}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-mr6400/v5.30/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-mr600/v2/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/archer-mr200/v7/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/faq/5237/","tags":["vendor-advisory"]},{"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/kr/support/download/tl-mr100/v3.20/#Firmware","tags":["patch"]}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"attackVector":"ADJACENT","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"HIGH","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","subConfidentialityImpact":"NONE","vulnIntegrityImpact":"HIGH","subIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","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":"MEDIUM","baseScore":6.9,"vectorString":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N"}}],"credits":[{"lang":"en","value":"MrBruh","type":"finder"},{"lang":"en","value":"haehet","type":"finder"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.2"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-11T14:44:35.924185Z","id":"CVE-2026-12339","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":"2026-08-11T14:44:53.124Z"}}]}}