{"id":"CVE-2025-15542","aliases":["EUVD-2025-206533","GHSA-mcfx-6pwv-q5v8"],"status":"published","title":"Denial of Service (DoS) of VoIP Communication on TP-Link VX800v","description":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00293,"percentile":0.22113,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-754"],"published":"2026-01-29T18:06:21Z","modified":"2026-06-17T08:37:59Z","products":[{"vendor":"tp-link","product":"vx800v_firmware"},{"vendor":"tp-link systems inc.","product":"vx800v v1.0"}],"references":[{"url":"https://www.tp-link.com/de/support/download/vx800v/#Firmware","tags":["patch","Product"]},{"url":"https://www.tp-link.com/us/support/faq/4930/","tags":["vendor-advisory","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-15542"},{"url":"https://www.tp-link.com/us/support/faq/4930"},{"url":"https://github.com/advisories/GHSA-mcfx-6pwv-q5v8"}],"sources":{"cve":[{"id":"CVE-2025-15542","title":"Denial of Service (DoS) of VoIP Communication on TP-Link VX800v","description":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.","status":"published","published":"2026-01-29T18:06:21.474Z","modified":"2026-01-29T18:47:56.331Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:32:37.351404Z"}],"euvd":[{"id":"EUVD-2025-206533","description":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.","status":"published","published":"2026-01-29T18:06:21Z","modified":"2026-01-29T18:47:56Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T19:48:45.944715Z"}],"ghsa":[{"id":"GHSA-mcfx-6pwv-q5v8","title":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker...","description":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.","status":"published","published":"2026-01-29T21:30:30Z","modified":"2026-03-09T18:32:40Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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":"medium"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:06:31.484049Z"}],"nvd":[{"id":"CVE-2025-15542","description":"Improper handling of exceptional conditions in VX800v v1.0 in SIP processing allows an attacker to flood the device with crafted INVITE messages, blocking all voice lines and causing a denial of service on incoming calls.","status":"published","published":"2026-01-29T19:16:11.32Z","modified":"2026-06-17T08:37:59.423Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/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":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","level":"medium","assessor":"primary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:11:59.073638Z"}]}}