Vulnerability · Published Sep 15, 2026 · Assigned by icscert
CVE-2026-66887Missing Authorization in Digital Watchdog VMAX DVR and NVR Product Lineups
Critical 9.6
In plain English
A critical-severity missing authorization 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 26% of all known vulnerabilities).
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)0.3%top 74.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The affected products are missing authorization on state-changing CGIs and session checks are not performed.
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-862 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H