Vulnerability · Published Sep 15, 2026 · Assigned by icscert
CVE-2026-66372Predictable Seed in Pseudo-Random Number Generator (PRNG) in Digital Watchdog VMAX DVR and NVR Product Lineups
Medium 6.8
In plain English
A medium-severity security flaw in VA1G4 Recorder from Digital Watchdog. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).
Severity (CVSS 3.1)6.8Medium
Exploit odds (30 days)0.3%top 79.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Digital Watchdog | VMAX A1 G4 DVR | All |
| Digital Watchdog | VMAX IP G4 NVR | All |
| Digital Watchdog | VMAX A1 PLUS | All |
| Digital Watchdog | VA1G4 Recorder | All |
| Digital Watchdog | VG4 Recorder | All |
Weakness: CWE-337 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N