{"id":"CVE-2021-44864","aliases":["EUVD-2021-31667","GHSA-vh8f-325p-cw9v"],"status":"published","title":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated...","description":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant \u0026 in parameter.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.10187,"percentile":0.95698,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-02-08T14:23:26Z","modified":"2026-06-17T04:12:54Z","products":[{"vendor":"tp-link","product":"wn886n_firmware"}],"references":[{"url":"https://github.com/zhlu32/cve/blob/main/tplink/wr886n/Tplink-wr886n-V3-Ping-DOS.md","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-44864"},{"url":"https://github.com/advisories/GHSA-vh8f-325p-cw9v"}],"sources":{"cve":[{"id":"CVE-2021-44864","description":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant \u0026 in parameter.","status":"published","published":"2022-02-08T14:23:26Z","modified":"2024-08-04T04:32:13.297Z","updated_at":"2026-11-02T14:33:01.166399Z"}],"euvd":[{"id":"EUVD-2021-31667","description":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant \u0026 in parameter.","status":"published","published":"2022-02-08T14:23:26Z","modified":"2024-08-04T04:32:13Z","updated_at":"2026-11-03T03:08:28.560815Z"}],"ghsa":[{"id":"GHSA-vh8f-325p-cw9v","title":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated...","description":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant \u0026 in parameter.","status":"published","published":"2022-02-09T00:00:30Z","modified":"2023-02-03T05:05:36Z","cwes":["CWE-120"],"updated_at":"2026-11-02T14:53:46.38105Z"}],"nvd":[{"id":"CVE-2021-44864","description":"TP-Link WR886N 3.0 1.0.1 Build 150127 Rel.34123n is vulnerable to Buffer Overflow. Authenticated attackers can crash router httpd services via /userRpm/PingIframeRpm.htm request which contains redundant \u0026 in parameter.","status":"published","published":"2022-02-08T15:15:07.597Z","modified":"2026-06-17T04:12:54.66Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:04.178977Z"}]}}