{"id":"CVE-2026-12935","aliases":["EUVD-2026-50449","GHSA-4j6v-4j5m-vgpq"],"status":"published","title":"Unauthenticated Remote Code Execution in TP-Link TL-WR940N RTSP Conntrack Feature","description":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can lead to a stack-based buffer overflow. The issue occurs when a\nLAN client initiates a connection to a malicious RTSP server controlled by an\nattacker. A specially crafted RTSP message may trigger improper memory handling\nwithin the kernel module\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation of this vulnerability may result in a denial-of-service (DoS)\ncondition or allow remote code execution (RCE), potentially leading to full\ncompromise of the device. This vulnerability can be exploited by an\nunauthenticated attacker under the device's default configuration.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00986,"percentile":0.62679,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121"],"published":"2026-07-29T18:20:06Z","modified":"2026-10-24T13:10:00Z","products":[{"vendor":"tp-link system inc.","product":"tl-wr940n v6"},{"vendor":"tp-link systems inc.","product":"tl-wr940n v6"}],"references":[{"url":"https://www.tp-link.com/us/support/download/tl-wr940n/v6/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr940n/v6/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/jp/support/download/tl-wr940n/v6/#Firmware","tags":["patch"]},{"url":"https://www.tp-link.com/us/support/faq/5213/","tags":["vendor-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-12935"},{"url":"https://www.tp-link.com/us/support/faq/5213"},{"url":"https://github.com/advisories/GHSA-4j6v-4j5m-vgpq"}],"sources":{"cve":[{"id":"CVE-2026-12935","title":"Unauthenticated Remote Code Execution in TP-Link TL-WR940N RTSP Conntrack Feature","description":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can lead to a stack-based buffer overflow. The issue occurs when a\nLAN client initiates a connection to a malicious RTSP server controlled by an\nattacker. A specially crafted RTSP message may trigger improper memory handling\nwithin the kernel module\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation of this vulnerability may result in a denial-of-service (DoS)\ncondition or allow remote code execution (RCE), potentially leading to full\ncompromise of the device. This vulnerability can be exploited by an\nunauthenticated attacker under the device's default configuration.","status":"published","published":"2026-07-29T18:20:06.417Z","modified":"2026-07-30T03:55:40.565Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:19:48.461833Z"}],"euvd":[{"id":"EUVD-2026-50449","description":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can lead to a stack-based buffer overflow. The issue occurs when a\nLAN client initiates a connection to a malicious RTSP server controlled by an\nattacker. A specially crafted RTSP message may trigger improper memory handling\nwithin the kernel module\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation of this vulnerability may result in a denial-of-service (DoS)\ncondition or allow remote code execution (RCE), potentially leading to full\ncompromise of the device. This vulnerability can be exploited by an\nunauthenticated attacker under the device's default configuration.","status":"published","published":"2026-07-29T18:20:06Z","modified":"2026-07-30T03:55:40Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:02:29.367786Z"}],"ghsa":[{"id":"GHSA-4j6v-4j5m-vgpq","title":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can...","description":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can lead to a stack-based buffer overflow. The issue occurs when a\nLAN client initiates a connection to a malicious RTSP server controlled by an\nattacker. A specially crafted RTSP message may trigger improper memory handling\nwithin the kernel module\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation of this vulnerability may result in a denial-of-service (DoS)\ncondition or allow remote code execution (RCE), potentially leading to full\ncompromise of the device. This vulnerability can be exploited by an\nunauthenticated attacker under the device's default configuration.","status":"published","published":"2026-07-29T21:30:59Z","modified":"2026-07-29T21:31:07Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:09:54.918351Z"}],"nvd":[{"id":"CVE-2026-12935","description":"The\nTL-WR940N v6 router contains a vulnerability in its RTSP connection tracking\nmodule that can lead to a stack-based buffer overflow. The issue occurs when a\nLAN client initiates a connection to a malicious RTSP server controlled by an\nattacker. A specially crafted RTSP message may trigger improper memory handling\nwithin the kernel module\n\n\n\n\n\n\n\n\n\nSuccessful\nexploitation of this vulnerability may result in a denial-of-service (DoS)\ncondition or allow remote code execution (RCE), potentially leading to full\ncompromise of the device. This vulnerability can be exploited by an\nunauthenticated attacker under the device's default configuration.","status":"published","published":"2026-07-29T19:16:44.113Z","modified":"2026-10-24T13:10:00.147Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:12:33.629616Z"}]}}