{"id":"CVE-2022-26642","aliases":["EUVD-2022-31196","GHSA-pgr2-39hw-mpmh"],"status":"published","title":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the...","description":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01253,"percentile":0.69661,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2022-03-28T22:42:47Z","modified":"2026-06-17T04:35:34Z","products":[{"vendor":"tp-link","product":"tl-wr840n_firmware"}],"references":[{"url":"https://github.com/Quadron-Research-Lab/Hardware-IoT/blob/main/tp-link%20tl-wr840n_X_TP_ClonedMACAddress%3D.pdf","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-26642"},{"url":"https://github.com/advisories/GHSA-pgr2-39hw-mpmh"}],"sources":{"cve":[{"id":"CVE-2022-26642","description":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.","status":"published","published":"2022-03-28T22:42:47Z","modified":"2024-08-03T05:11:43.39Z","updated_at":"2026-11-02T14:34:25.954329Z"}],"euvd":[{"id":"EUVD-2022-31196","description":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.","status":"published","published":"2022-03-28T22:42:47Z","modified":"2024-08-03T05:11:43Z","updated_at":"2026-11-03T03:25:44.694159Z"}],"ghsa":[{"id":"GHSA-pgr2-39hw-mpmh","title":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the...","description":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.","status":"published","published":"2022-03-30T00:00:30Z","modified":"2023-01-27T05:01:14Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:41:50.629165Z"}],"nvd":[{"id":"CVE-2022-26642","description":"TP-LINK TL-WR840N(ES)_V6.20 was discovered to contain a buffer overflow via the X_TP_ClonedMACAddress parameter.","status":"published","published":"2022-03-28T23:15:07.93Z","modified":"2026-06-17T04:35:34.117Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:07:14.24948Z"}]}}