{"cve":"CVE-2018-15840","nvd":{"published":"2019-03-29T18:29:00.190","modified":"2026-06-17T01:43:10.880","status":"Modified","description":"TP-Link TL-WR840N devices allow remote attackers to cause a denial of service (networking outage) via fragmented packets, as demonstrated by an \"nmap -f\" command.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-119"],"references":["https://hackingvila.wordpress.com/2019/02/17/tp-link-wireless-n-router-wr840n-buffer-overflow-cve-2018-15840/","https://hackingvila.wordpress.com/2019/02/17/tp-link-wireless-n-router-wr840n-buffer-overflow-cve-2018-15840/"],"products":["tp-link:tl-wr840n_firmware"],"source":"nvd","synced_at":"2026-10-19T20:55:22.313337056+00:00"},"epss":{"cve":"CVE-2018-15840","score":0.01858,"percentile":0.79211,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}