CVE-2026-66372 Predictable Seed in Pseudo-Random Number Generator (PRNG) in Digital Watchdog VMAX DVR and NVR Product Lineups
Predictable PRNG seeds allow attackers to guess web session tokens, potentially leading to unauthorized access to Digital Watchdog DVR and NVR devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66372?
CVE-2026-66372 is a high-severity vulnerability in Digital Watchdog VA1G4 Recorder, published on 15 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The affected products use insufficiently random values, which allows web session tokens to be predictable, bounding token entropy to the seed space.
Weakness: CWE-337
Which versions are affected by CVE-2026-66372?
How do I fix CVE-2026-66372?
No fix has been published for CVE-2026-66372 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-66372 being exploited?
There is no known exploitation of CVE-2026-66372 in the wild and no public exploit code.
Sources
Also known as GHSA-gq5q-45hh-68cr.