{"id":"CVE-2026-66372","aliases":["EUVD-2026-79953","GHSA-gq5q-45hh-68cr"],"status":"published","title":"Predictable Seed in Pseudo-Random Number Generator (PRNG) in Digital Watchdog VMAX DVR and NVR Product Lineups","description":"The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.","severity":{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00276,"percentile":0.20157,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-337"],"published":"2026-09-15T20:41:19Z","modified":"2026-09-18T19:39:09Z","products":[{"vendor":"digital watchdog","product":"va1g4 recorder"},{"vendor":"digital watchdog","product":"vg4 recorder"},{"vendor":"digital watchdog","product":"vmax a1 g4 dvr"},{"vendor":"digital watchdog","product":"vmax a1 plus"},{"vendor":"digital watchdog","product":"vmax ip g4 nvr"}],"references":[{"url":"https://digital-watchdog.com/downloads/"},{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-66372"},{"url":"https://digital-watchdog.com/downloads"},{"url":"https://github.com/advisories/GHSA-gq5q-45hh-68cr"}],"sources":{"cve":[{"id":"CVE-2026-66372","title":"Predictable Seed in Pseudo-Random Number Generator (PRNG) in Digital Watchdog VMAX DVR and NVR Product Lineups","description":"The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.","status":"published","published":"2026-09-15T20:41:19.724Z","modified":"2026-09-17T18:46:41.717Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-337"],"updated_at":"2026-11-02T14:20:13.272106Z"}],"euvd":[{"id":"EUVD-2026-79953","description":"The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.","status":"published","published":"2026-09-15T20:41:19Z","modified":"2026-09-17T18:46:41Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:10.38936Z"}],"ghsa":[{"id":"GHSA-gq5q-45hh-68cr","title":"The affected products use insufficiently random values, which allows web session tokens to be...","description":"The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.","status":"published","published":"2026-09-15T21:33:03Z","modified":"2026-09-15T21:33:13Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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":"high"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium"}],"cwes":["CWE-337"],"updated_at":"2026-11-02T15:11:56.361668Z"}],"nvd":[{"id":"CVE-2026-66372","description":"The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.","status":"published","published":"2026-09-15T21:16:41.743Z","modified":"2026-09-18T19:39:09.49Z","cvss":[{"version":"4.0","score":7.6,"vector":"CVSS:4.0/AV:A/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/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":"high","assessor":"secondary"},{"version":"3.1","score":6.8,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-337"],"updated_at":"2026-11-02T14:12:48.287983Z"}]}}