Answer in brief
CVE-2026-66887 records a Unknown severity vulnerability in Missing Authorization in Digital Watchdog VMAX DVR and NVR Product Lineups. The current sources do not mark it as known exploited. The current feed maps Digital Watchdog/VA1G4 Recorder (generic), Digital Watchdog/VG4 Recorder (generic), Digital Watchdog/VMAX A1 G4 DVR (generic), Digital Watchdog/VMAX A1 PLUS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Digital Watchdog/VA1G4 Recorder (generic), Digital Watchdog/VG4 Recorder (generic), Digital Watchdog/VMAX A1 G4 DVR (generic), Digital Watchdog/VMAX A1 PLUS (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Digital Watchdog/VA1G4 Recordergeneric | All | Not reported |
| Digital Watchdog/VG4 Recordergeneric | All | Not reported |
| Digital Watchdog/VMAX A1 G4 DVRgeneric | All | Not reported |
| Digital Watchdog/VMAX A1 PLUSgeneric | All | Not reported |
| Digital Watchdog/VMAX IP G4 NVRgeneric | All | Not reported |
Published upstream
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 15, 2026
The affected products are missing authorization on state-changing CGIs and session checks are not performed.
Quoted source text, attributed separately from HOL analysis.