{"id":"CVE-2017-9484","aliases":["EUVD-2017-18416","GHSA-g8wg-qq27-h8wg"],"status":"published","title":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a...","description":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.0151,"percentile":0.74605,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2017-07-31T03:00:00Z","modified":"2026-06-17T01:28:12Z","products":[{"vendor":"cisco","product":"dpc3939_firmware"}],"references":[{"url":"https://github.com/BastilleResearch/CableTap/blob/master/doc/advisories/bastille-27.ipv6-cm-mac-leak.txt","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-9484"},{"url":"https://github.com/advisories/GHSA-g8wg-qq27-h8wg"}],"sources":{"cve":[{"id":"CVE-2017-9484","description":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.","status":"published","published":"2017-07-31T03:00:00Z","modified":"2024-08-05T17:11:01.83Z","updated_at":"2026-11-02T14:33:13.606903Z"}],"euvd":[{"id":"EUVD-2017-18416","description":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.","status":"published","published":"2017-07-31T03:00:00Z","modified":"2024-08-05T17:11:01Z","updated_at":"2026-11-03T02:23:27.678389Z"}],"ghsa":[{"id":"GHSA-g8wg-qq27-h8wg","title":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a...","description":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.","status":"published","published":"2022-05-17T02:20:38Z","modified":"2023-01-27T05:04:37Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:42:30.494485Z"}],"nvd":[{"id":"CVE-2017-9484","description":"The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421733-160420a-CMCST) and DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to discover a CM MAC address by sniffing Wi-Fi traffic and performing simple arithmetic calculations.","status":"published","published":"2017-07-31T03:29:00.503Z","modified":"2026-06-17T01:28:12.86Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:03:54.862898Z"}]}}