{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-11409 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-11409 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-11409 is a high-severity command injection vulnerability in TP-Link Systems Inc. TL-WR940N v6, published on 16 Jun 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-2026-11409 and fix it if it is affected.\n\nWhat it is: CVE-2026-11409 is a high-severity command injection vulnerability in TP-Link Systems Inc. TL-WR940N v6, published on 16 Jun 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-2026-11409 in the wild and no public exploit code.\n\nAffected product: TP-Link Systems Inc. TL-WR940N v6. 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-2026-11409/ (Markdown: https://insights.sbomify.com/CVE-2026-11409/index.md)","id":"CVE-2026-11409","markdown":"https://insights.sbomify.com/CVE-2026-11409/index.md","name":"CVE-2026-11409","record":{"aliases":["GHSA-xwmq-379c-mhf5"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"TP-Link router","requires_auth":"high_privilege","summary":"Authenticated attackers can execute arbitrary system commands with elevated privileges via improper input sanitization in the IPv6 PPPoE configuration handler.","user_interaction":"not_required","vuln_class":"command_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"TPLink","cpe":[{"product":"tl-wr940n_firmware","vendor":"tp-link"}],"cvss":{"score":8.5,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"An authenticated OS command injection vulnerability exists in the IPv6 PPPoE configuration handler in TL-WR940N v6 due to improper sanitization of user input. An attacker with administrative access may exploit this issue to execute arbitrary system commands with elevated privileges.","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":"OS Command Injection in IPv6 PPPoE Configuration in TP-Link TL-WR940N","id":"CVE-2026-11409","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"command_injection","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"OS Command Injection in BigPond Cable (BPA) Configuration in TP-Link TL-WR940N","id":"CVE-2026-11410"},"packages":[],"prev":{"headline":"vertex-app vertex Log Viewer Endpoint LogMod.js os command injection","id":"CVE-2026-11408"},"products":["TL-WR940N v6"],"published":"2026-06-16","related":[{"cvss_score":9.9,"headline":"Memory corruption in n/a","id":"CVE-2023-36355","kev_date_added":null,"published":"2023-06-22"},{"cvss_score":8.8,"headline":"Memory corruption in TL-WR940N","id":"CVE-2022-24355","kev_date_added":null,"published":"2022-02-18"},{"cvss_score":8.8,"headline":"Memory corruption in n/a","id":"CVE-2019-6989","kev_date_added":null,"published":"2019-06-06"},{"cvss_score":8.5,"headline":"OS Command Injection in BigPond Cable (BPA) Configuration in TP-Link TL-WR940N","id":"CVE-2026-11410","kev_date_added":null,"published":"2026-06-16"},{"cvss_score":8.2,"headline":"TP-Link TL-WR940N, TL-WR841N WanSlaacCfgRpm.htm buffer overflow","id":"CVE-2025-6151","kev_date_added":null,"published":"2025-06-17"},{"cvss_score":8,"headline":"Memory corruption in n/a","id":"CVE-2024-54887","kev_date_added":null,"published":"2025-01-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"total"},"state":"PUBLISHED","updated":"2026-06-18","vendors":["TP-Link Systems Inc."]},"summary":"Authenticated attackers can execute arbitrary system commands with elevated privileges via improper input sanitization in the IPv6 PPPoE configuration handler.","url":"https://insights.sbomify.com/CVE-2026-11409/"}