{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-12339 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-12339 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-12339 is a medium-severity path traversal vulnerability in TP-Link Systems Inc. Archer MR200 v7, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-12339 and fix it if it is affected.\n\nWhat it is: CVE-2026-12339 is a medium-severity path traversal vulnerability in TP-Link Systems Inc. Archer MR200 v7, published on 10 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-12339 in the wild and no public exploit code.\n\nAffected product: TP-Link Systems Inc. Archer MR200 v7. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-12339/ (Markdown: https://insights.sbomify.com/CVE-2026-12339/index.md)","id":"CVE-2026-12339","markdown":"https://insights.sbomify.com/CVE-2026-12339/index.md","name":"CVE-2026-12339","record":{"aliases":["GHSA-www9-662g-pffv"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["data_modify","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"TP-Link router","requires_auth":"high_privilege","summary":"Authenticated administrators can overwrite arbitrary system files via Zip Slip in the WebUI ISP upgrade, compromising integrity and availability.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TPLink","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"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","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"Authenticated Arbitrary File Write Vulnerability in multiple devices","id":"CVE-2026-12339","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Out-of-bounds heap read in SM2/SM3 certificate Subject Key Identifier computation","id":"CVE-2026-12340"},"packages":[],"prev":{"headline":"Incorrect boundary conditions in the Internationalization component","id":"CVE-2026-12330"},"products":["Archer MR200 v7","Archer MR600 v2","TL-MR100 v3.20","TL-MR150 v3.20","TL-MR6400 v5.3","TL-MR6400 v8.0"],"published":"2026-08-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-25","vendors":["TP-Link Systems Inc."]},"summary":"Authenticated administrators can overwrite arbitrary system files via Zip Slip in the WebUI ISP upgrade, compromising integrity and availability.","url":"https://insights.sbomify.com/CVE-2026-12339/"}