{"id":"CVE-2026-30814","aliases":["EUVD-2026-20542","GHSA-w4qp-mpq3-cw45"],"status":"published","title":"Buffer Overflow Vulnerability in TP-Link AX53","description":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity.\n\nThis issue affects AX53 v1.0: before 1.7.1 Build 20260213.","severity":{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00438,"percentile":0.38522,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-121","CWE-787"],"published":"2026-04-08T17:52:00Z","modified":"2026-07-25T11:10:00Z","products":[{"vendor":"tp-link","product":"archer_ax53_firmware"},{"vendor":"tp-link systems inc.","product":"ax53 v1.0"}],"references":[{"url":"https://www.tp-link.com/my/support/download/archer-ax53/v1/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/en/support/download/archer-ax53/v1/#Firmware","tags":["patch","Product"]},{"url":"https://talosintelligence.com/vulnerability_reports/","tags":["third-party-advisory","Third Party Advisory"]},{"url":"https://www.tp-link.com/us/support/faq/5055/","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2302"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30814"},{"url":"https://talosintelligence.com/vulnerability_reports"},{"url":"https://www.tp-link.com/us/support/faq/5055"},{"url":"https://github.com/advisories/GHSA-w4qp-mpq3-cw45"}],"sources":{"cve":[{"id":"CVE-2026-30814","title":"Buffer Overflow Vulnerability in TP-Link AX53","description":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity.\n\nThis issue affects AX53 v1.0: before 1.7.1 Build 20260213.","status":"published","published":"2026-04-08T17:52:00.929Z","modified":"2026-05-07T15:47:00.488Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high","assessor":"cna"}],"cwes":["CWE-121"],"updated_at":"2026-11-02T13:43:56.024247Z"}],"euvd":[{"id":"EUVD-2026-20542","description":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity.\n\nThis issue affects AX53 v1.0: before 1.7.1 Build 20260213.","status":"published","published":"2026-04-08T17:52:00Z","modified":"2026-05-07T15:47:00Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L","level":"high"}],"updated_at":"2026-11-02T19:05:14.902845Z"}],"ghsa":[{"id":"GHSA-w4qp-mpq3-cw45","title":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an...","description":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity.\n\nThis issue affects AX53 v1.0: before 1.7.1 Build 20260213.","status":"published","published":"2026-04-08T21:33:32Z","modified":"2026-05-07T18:31:33Z","cvss":[{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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","CWE-787"],"updated_at":"2026-11-02T15:07:57.010667Z"}],"nvd":[{"id":"CVE-2026-30814","description":"A stack-based buffer overflow in the tmpServer module of TP-Link Archer AX53 v1.0 allows an authenticated adjacent attacker to trigger a segmentation fault and potentially execute arbitrary code via a specially crafted configuration file. Successful exploitation may cause a crash and could allow arbitrary code execution, enabling modification of device state, exposure of sensitive data, or further compromise of device integrity.\n\nThis issue affects AX53 v1.0: before 1.7.1 Build 20260213.","status":"published","published":"2026-04-08T19:25:20.14Z","modified":"2026-07-25T11:10:00.1Z","cvss":[{"version":"4.0","score":7.3,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/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"},{"version":"3.1","score":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-121","CWE-787"],"updated_at":"2026-11-02T14:12:13.535987Z"}]}}