CVE-2026-68953

EUVD-2026-79944 HIGH

Missing Authentication for Critical Function (CWE-306)

2026-09-15 ics-cert@hq.dhs.gov

GHSA-w4gc-5pxg-x2jh

Authentication Bypass

7.1

CVSS 4.0 · Vendor: hq

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Vulnerability Assessment

Weakness

CWE

CWE-306

OWASP Top 10:2025

A07:2025 - Authentication Failures

ASVS 5.0

V6 - Authentication Authentication required for critical functions

MITRE ATT&CK

1 technique across 1 tactic: Initial Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Act Now Prioritize within 24-48h. Why: Active threat signals + CRITICAL/HIGH severity.

No patch listed yet 0.4% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 15, 2026

Unauthenticated HTTP(S) requests to Digital Watchdog VMAX-series video recorders (VMAX A1 G4 DVR, VMAX IP G4 NVR, VG4 Recorder, VMAX A1 PLUS, VA1G4 Recorder) can bypass authentication and return sensitive device data, including administrator credentials in plaintext. The flaw is a missing authentication check on a critical function (CWE-306) scored 7.1 with a CVSS 4.0 vector of AV:A/AC:L/PR:N/UI:N/VC:H, meaning adjacent-network attackers with no credentials and no user interaction can fully read the exposed information but cannot modify or disrupt the device. It was reported through CISA ICS-CERT advisory ICSA-26-258-01 and is not listed in CISA KEV, and no public exploit code was identified at time of analysis.

Affected VersionsENISA

VMAX A1 G4 DVR All

VMAX IP G4 NVR All

VG4 Recorder All

VMAX A1 PLUS All

VA1G4 Recorder All

Affects your stack

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (hq) PRIMARY 7.1 HIGH

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (hq) · only source for this CVE.

CVSS VectorVendor: hq

Attack Vector

Adjacent

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

DescriptionCVE.org

The affected products are vulnerable to an authentication bypass that allows unauthenticated remote attackers to disclose sensitive device information, including administrator credentials in plaintext, by sending crafted HTTP(S) requests.

Threat Intelligence Overview

EPSS Score

0.4%

Top 69% exploitable

Threat Intel

1 source

Data Quality

6 sources

Confidence: High

EUVD

NVD

CVE.org

EPSS CISA

GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 0.4%

Patch available No

Active threat Yes

Deciding rule

Active threat signals + CRITICAL/HIGH severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.