{"id":"CVE-2025-40634","aliases":["EUVD-2025-15816","GHSA-h754-2839-mqvq"],"status":"published","title":"Stack-based buffer overflow in TP-Link Archer AX50","description":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.","severity":{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00682,"percentile":0.52924,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":false},"cwes":["CWE-121"],"published":"2025-05-20T10:12:16Z","modified":"2026-06-17T09:21:51Z","exploits":[{"source":"pocgithub","id":"hacefresko/CVE-2025-40634","title":"hacefresko/CVE-2025-40634","date":"2025-05-20","url":"https://github.com/hacefresko/CVE-2025-40634"}],"products":[{"vendor":"tp-link","product":"link archer ax50"}],"references":[{"url":"https://www.incibe.es/en/incibe-cert/notices/aviso/stack-based-buffer-overflow-tp-link-archer-ax50"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-40634"},{"url":"https://github.com/advisories/GHSA-h754-2839-mqvq"}],"sources":{"cve":[{"id":"CVE-2025-40634","title":"Stack-based buffer overflow in TP-Link Archer AX50","description":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.","status":"published","published":"2025-05-20T10:12:16.55Z","modified":"2025-05-20T13:30:19.289Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:32:34.434755Z"}],"euvd":[{"id":"EUVD-2025-15816","description":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.","status":"published","published":"2025-05-20T10:12:16Z","modified":"2025-05-20T13:30:19Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"critical"}],"updated_at":"2026-11-02T20:32:43.763029Z"}],"ghsa":[{"id":"GHSA-h754-2839-mqvq","title":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the...","description":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.","status":"published","published":"2025-05-20T12:30:23Z","modified":"2025-05-20T12:30:32Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/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":"critical"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T15:02:21.932853Z"}],"nvd":[{"id":"CVE-2025-40634","description":"Stack-based buffer overflow vulnerability in the 'conn-indicator' binary running as root on the TP-Link Archer AX50 router, in firmware versions prior to 1.0.15 build 241203 rel61480. This vulnerability allows an attacker to execute arbitrary code on the device over LAN and WAN networks.","status":"published","published":"2025-05-20T11:15:48.93Z","modified":"2026-06-17T09:21:51.953Z","cvss":[{"version":"4.0","score":9.2,"vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/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":"critical","assessor":"secondary"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T14:11:09.125937Z"}]}}