Vulnerability-Lookup

CVE-2026-66887 (GCVE-0-2026-66887)

Vulnerability from cvelistv5 – Published: 2026-09-15 20:37 – Updated: 2026-09-15 20:37

Title

Missing Authorization in Digital Watchdog VMAX DVR and NVR Product Lineups

Summary

The affected products are missing authorization on state-changing CGIs and session checks are not performed.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.4 (Critical)


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

CWE

CWE-862 - Missing Authorization

Assigner

icscert icscert root

References

3 references

URL	Tags
https://digital-watchdog.com/downloads/
https://www.cisa.gov/news-events/ics-advisories/i…
https://github.com/cisagov/CSAF/blob/develop/csaf…

Impacted products

5 products

Vendor	Product	Version	CPE status
Digital Watchdog	VMAX A1 G4 DVR	Affected: All	guessed
Digital Watchdog	VMAX IP G4 NVR	Affected: All	guessed
Digital Watchdog	VMAX A1 PLUS	Affected: All	guessed
Digital Watchdog	VA1G4 Recorder	Affected: All	guessed
Digital Watchdog	VG4 Recorder	Affected: All	guessed

Date Public

2026-09-15 18:28

Credits

Scot Berner of TrustedSec reported this vulnerability to CISA.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "VMAX A1 G4 DVR",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VMAX IP G4 NVR",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VMAX A1 PLUS",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VA1G4 Recorder",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VG4 Recorder",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Scot Berner of TrustedSec reported this vulnerability to CISA."
        }
      ],
      "datePublic": "2026-09-15T18:28:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "The affected products are missing authorization on state-changing CGIs and session checks are not performed."
            }
          ],
          "value": "The affected products are missing authorization on state-changing CGIs and session checks are not performed."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.6,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        },
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "ADJACENT",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "HIGH",
            "vulnIntegrityImpact": "HIGH",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-15T20:37:51.407Z",
        "orgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
        "shortName": "icscert"
      },
      "references": [
        {
          "url": "https://digital-watchdog.com/downloads/"
        },
        {
          "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01"
        },
        {
          "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json"
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Digital Watchdog has released updated firmware for the affected products. Users should download and install the updated firmware for their model at:\u0026nbsp; \u003ca href=\"https://digital-watchdog.com/downloads/\"\u003ehttps://digital-watchdog.com/downloads/\u003c/a\u003e"
            }
          ],
          "value": "Digital Watchdog has released updated firmware for the affected products. Users should download and install the updated firmware for their model at:\u00a0  https://digital-watchdog.com/downloads/"
        }
      ],
      "source": {
        "advisory": "ICSA-26-258-01",
        "discovery": "EXTERNAL"
      },
      "title": "Missing Authorization in Digital Watchdog VMAX DVR and NVR Product Lineups",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "7d14cffa-0d7d-4270-9dc0-52cabd5a23a6",
    "assignerShortName": "icscert",
    "cveId": "CVE-2026-66887",
    "datePublished": "2026-09-15T20:37:51.407Z",
    "dateReserved": "2026-08-03T21:27:04.605Z",
    "dateUpdated": "2026-09-15T20:37:51.407Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-66887\",\"sourceIdentifier\":\"ics-cert@hq.dhs.gov\",\"published\":\"2026-09-15T21:16:41.930\",\"lastModified\":\"2026-09-15T21:16:41.930\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The affected products are missing authorization on state-changing CGIs and session checks are not performed.\"}],\"affected\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"affectedData\":[{\"vendor\":\"Digital Watchdog\",\"product\":\"VMAX A1 G4 DVR\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All\",\"status\":\"affected\"}]},{\"vendor\":\"Digital Watchdog\",\"product\":\"VMAX IP G4 NVR\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All\",\"status\":\"affected\"}]},{\"vendor\":\"Digital Watchdog\",\"product\":\"VMAX A1 PLUS\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All\",\"status\":\"affected\"}]},{\"vendor\":\"Digital Watchdog\",\"product\":\"VA1G4 Recorder\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All\",\"status\":\"affected\"}]},{\"vendor\":\"Digital Watchdog\",\"product\":\"VG4 Recorder\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"All\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":9.4,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"ADJACENT\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"HIGH\",\"subIntegrityImpact\":\"HIGH\",\"subAvailabilityImpact\":\"HIGH\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.6,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":6.0}]},\"weaknesses\":[{\"source\":\"ics-cert@hq.dhs.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"references\":[{\"url\":\"https://digital-watchdog.com/downloads/\",\"source\":\"ics-cert@hq.dhs.gov\"},{\"url\":\"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json\",\"source\":\"ics-cert@hq.dhs.gov\"},{\"url\":\"https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01\",\"source\":\"ics-cert@hq.dhs.gov\"}]}}"
  }
}

FKIE_CVE-2026-66887

Vulnerability from fkie_nvd - Published: 2026-09-15 21:16 - Updated: 2026-09-15 21:16

Severity

9.6 (Critical) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Summary

The affected products are missing authorization on state-changing CGIs and session checks are not performed.

References

	URL	Tags
	ics-cert@hq.dhs.gov	https://digital-watchdog.com/downloads/
	ics-cert@hq.dhs.gov	https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json
	ics-cert@hq.dhs.gov	https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "VMAX A1 G4 DVR",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VMAX IP G4 NVR",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VMAX A1 PLUS",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VA1G4 Recorder",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "VG4 Recorder",
          "vendor": "Digital Watchdog",
          "versions": [
            {
              "status": "affected",
              "version": "All"
            }
          ]
        }
      ],
      "source": "ics-cert@hq.dhs.gov"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The affected products are missing authorization on state-changing CGIs and session checks are not performed."
    }
  ],
  "id": "CVE-2026-66887",
  "lastModified": "2026-09-15T21:16:41.930",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "ADJACENT_NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0,
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "ADJACENT",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 9.4,
          "baseSeverity": "CRITICAL",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "ics-cert@hq.dhs.gov",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-09-15T21:16:41.930",
  "references": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://digital-watchdog.com/downloads/"
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json"
    },
    {
      "source": "ics-cert@hq.dhs.gov",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01"
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "ics-cert@hq.dhs.gov",
      "type": "Primary"
    }
  ]
}

GHSA-294R-HWG8-M55W

Vulnerability from github – Published: 2026-09-15 21:33 – Updated: 2026-09-15 21:33

Details

The affected products are missing authorization on state-changing CGIs and session checks are not performed.

Severity

9.6 (Critical)


                  
                    CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

9.4 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-66887"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-15T21:16:41Z",
    "severity": "CRITICAL"
  },
  "details": "The affected products are missing authorization on state-changing CGIs and session checks are not performed.",
  "id": "GHSA-294r-hwg8-m55w",
  "modified": "2026-09-15T21:33:03Z",
  "published": "2026-09-15T21:33:03Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66887"
    },
    {
      "type": "WEB",
      "url": "https://digital-watchdog.com/downloads"
    },
    {
      "type": "WEB",
      "url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-258-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-258-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-66887 (GCVE-0-2026-66887)

FKIE_CVE-2026-66887

GHSA-294R-HWG8-M55W

Tags

Sightings

Nomenclature

Related by attack behaviour