Vulnerability-Lookup

CVE-2026-87827 (GCVE-0-2026-87827)

Vulnerability from cvelistv5 – Published: 2026-09-09 10:54 – Updated: 2026-09-09 12:28

Previdian

Title

KGUARD DVR unauthenticated remote command execution vulnerability

Summary

Certain KGUARD DVR devices running vulnerable firmware expose a system command execution service on all network interfaces without requiring authentication. A remote unauthenticated attacker with network access to the affected service can execute arbitrary system commands on the device, potentially resulting in complete compromise of the DVR. The vulnerability is known to have been exploited in the wild by the Mirai_ptea (Rimasuta) and Mirai_aurora botnets for malware propagation and subsequent DDoS activity. The vulnerability was reported to affect firmware dating from 2016, while firmware released after 2017 appears to mitigate the issue by restricting the affected service to the localhost interface (127.0.0.1) instead of exposing it on all interfaces (0.0.0.0). The affected-device list reported by Netlab includes many D1004NR, D1008NR, D1016NR, D1104, D1104NR, D1108NR, D1116NR, D1132NR, D2116NR, D97xx, D98xx, and D99xx variants and several associated hardware revisions The exploit is included in some version of rapperbot and exploited in 2026. This assignment has been made to document the active exploitation and lack of documentation from the vendor.

Severity

10 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-09 12:27 UTC

CWE

CWE-1188 - Insecure Default Initialization of Resource

Assigner

CIRCL ENISA root

References

1 reference

URL	Tags
https://blog.netlab.360.com/mirai_ptea-botnet-is-…	technical-description

Impacted products

1 product

Vendor	Product	Version	CPE status
KGUARD	KGUARD_firmware	Unknown: 0 , ≤ * (semver)	guessed

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 07fde58d-065c-4f29-a7bd-2021f9430de4

Vulnerability ID: CVE-2026-87827

Status: Confirmed

Status Updated: 2026-09-09 11:01 UTC

Exploited: Yes

Timestamps

First Seen: 2026-09-09

Asserted: 2026-09-09

Scope

Notes: KGUARD DVR unauthenticated remote command execution vulnerability | Affected: KGUARD / KGUARD_firmware | CVSS: 10.0 (CRITICAL) | Used in malware: yes | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	KGUARD DVR unauthenticated remote command execution vulnerability
Cve Id	CVE-2026-87827
Vendor	KGUARD
Ghsa Id	GHSA-MXWW-3QMJ-G8P3
Product	KGUARD_firmware
Added Date	2026-09-09T11:01:06.386Z
Cvss Score	10.0
Epss Score	None
Previous Ids
Cvss Severity	CRITICAL
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	None
Used In Malware	yes
Vulnerability Id	CVE-2026-87827
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-09-10 12:00 UTC | Updated: 2026-09-10 12:00 UTC

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-87827

Vulnerability from fkie_nvd - Published: 2026-09-09 11:17 - Updated: 2026-09-09 15:37

Previdian

Severity

10.0 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Summary

References

	URL	Tags
	5a6e4751-2f3f-4070-9419-94fb35b644e8	https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "HIGH",
          "subIntegrityImpact": "HIGH",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/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": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-87827",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-09-09T12:27:47.183838Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-09-09T11:17:16.423",
  "references": [
    {
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "url": "https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/"
    }
  ],
  "sourceIdentifier": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1188"
        }
      ],
      "source": "5a6e4751-2f3f-4070-9419-94fb35b644e8",
      "type": "Secondary"
    }
  ]
}

GCVE-1-2026-20026 (CVE-2026-87827)

Vulnerability from gna-1 – Published: 2026-09-09 10:27 – Updated: 2026-09-09 10:53

Previdian

Title

KGUARD DVR unauthenticated remote command execution vulnerability

Summary

Severity

10 (Critical)


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

CWE

CWE-1188 - Insecure Default Initialization of Resource

Assigner

GNA-1 This instance

References

1 reference

URL	Tags
https://blog.netlab.360.com/mirai_ptea-botnet-is-…	technical-description

Impacted products

1 product

Vendor	Product	Version
KGUARD	KGUARD_firmware	Unknown: 0 , ≤ * (semver)

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 07fde58d-065c-4f29-a7bd-2021f9430de4

Vulnerability ID: CVE-2026-87827

Status: Confirmed

Status Updated: 2026-09-09 11:01 UTC

Exploited: Yes

Timestamps

First Seen: 2026-09-09

Asserted: 2026-09-09

Scope

Notes: KGUARD DVR unauthenticated remote command execution vulnerability | Affected: KGUARD / KGUARD_firmware | CVSS: 10.0 (CRITICAL) | Used in malware: yes | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Confirmed Compromise

Confidence: 70%

Source: previdian

Details

Feed	Previdian (previdian.com)
Title	KGUARD DVR unauthenticated remote command execution vulnerability
Cve Id	CVE-2026-87827
Vendor	KGUARD
Ghsa Id	GHSA-MXWW-3QMJ-G8P3
Product	KGUARD_firmware
Added Date	2026-09-09T11:01:06.386Z
Cvss Score	10.0
Epss Score	None
Previous Ids
Cvss Severity	CRITICAL
Virtual Patch	False
Cvss Estimated	False
Epss Percentile	None
Used In Malware	yes
Vulnerability Id	CVE-2026-87827
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-09-10 12:00 UTC | Updated: 2026-09-10 12:00 UTC

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "KGUARD_firmware",
          "vendor": "KGUARD",
          "versions": [
            {
              "lessThanOrEqual": "*",
              "status": "unknown",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cdiv\u003e\u003c/div\u003e\u003cp\u003eCertain KGUARD DVR devices running vulnerable firmware expose a system command execution service on all network interfaces without requiring authentication. A remote unauthenticated attacker with network access to the affected service can execute arbitrary system commands on the device, potentially resulting in complete compromise of the DVR.\u003c/p\u003e\u003cp\u003eThe vulnerability is known to have been exploited in the wild by the Mirai_ptea (Rimasuta) and Mirai_aurora botnets for malware propagation and subsequent DDoS activity. The vulnerability was reported to affect firmware dating from 2016, while firmware released after 2017 appears to mitigate the issue by restricting the affected service to the localhost interface (\u003ccode\u003e127.0.0.1\u003c/code\u003e) instead of exposing it on all interfaces (\u003ccode\u003e0.0.0.0\u003c/code\u003e).\u003cbr\u003e\u003cbr\u003eThe affected-device list reported by Netlab includes many \u003ccode\u003eD1004NR\u003c/code\u003e, \u003ccode\u003eD1008NR\u003c/code\u003e, \u003ccode\u003eD1016NR\u003c/code\u003e, \u003ccode\u003eD1104\u003c/code\u003e, \u003ccode\u003eD1104NR\u003c/code\u003e, \u003ccode\u003eD1108NR\u003c/code\u003e, \u003ccode\u003eD1116NR\u003c/code\u003e, \u003ccode\u003eD1132NR\u003c/code\u003e, \u003ccode\u003eD2116NR\u003c/code\u003e, \u003ccode\u003eD97xx\u003c/code\u003e, \u003ccode\u003eD98xx\u003c/code\u003e, and \u003ccode\u003eD99xx\u003c/code\u003e variants and several associated hardware revisions\u003cbr\u003e\u003c/p\u003eThe exploit is included in some version of\u0026nbsp;rapperbot and exploited in 2026. This assignment has been made to document the active exploitation and lack of documentation from the vendor.\u003cdiv\u003e\u003c/div\u003e"
            }
          ],
          "value": "Certain KGUARD DVR devices running vulnerable firmware expose a system command execution service on all network interfaces without requiring authentication. A remote unauthenticated attacker with network access to the affected service can execute arbitrary system commands on the device, potentially resulting in complete compromise of the DVR.\n\nThe vulnerability is known to have been exploited in the wild by the Mirai_ptea (Rimasuta) and Mirai_aurora botnets for malware propagation and subsequent DDoS activity. The vulnerability was reported to affect firmware dating from 2016, while firmware released after 2017 appears to mitigate the issue by restricting the affected service to the localhost interface (127.0.0.1) instead of exposing it on all interfaces (0.0.0.0).\n\nThe affected-device list reported by Netlab includes many D1004NR, D1008NR, D1016NR, D1104, D1104NR, D1108NR, D1116NR, D1132NR, D2116NR, D97xx, D98xx, and D99xx variants and several associated hardware revisions\n\n\nThe exploit is included in some version of\u00a0rapperbot and exploited in 2026. This assignment has been made to document the active exploitation and lack of documentation from the vendor."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-115",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-115 Authentication Bypass"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 10,
            "baseSeverity": "CRITICAL",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "HIGH",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/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-1188",
              "description": "CWE-1188 Insecure Default Initialization of Resource",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "orgId": "00000000-0000-4000-9000-000000000000"
      },
      "references": [
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en/"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "KGUARD DVR unauthenticated remote command execution vulnerability",
      "x_gcve": [
        {
          "recordType": "advisory",
          "vulnId": "gcve-1-2026-20026"
        }
      ],
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "00000000-0000-4000-9000-000000000000",
    "cveId": "CVE-2026-87827",
    "datePublished": "2026-09-09T10:27:00.000Z",
    "dateReserved": "2026-09-09T10:41:00.000Z",
    "dateUpdated": "2026-09-09T10:53:31.849724Z",
    "requesterUserId": "00000000-0000-4000-9000-000000000000",
    "serial": 1,
    "state": "PUBLISHED",
    "vulnId": "gcve-1-2026-20026"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

GHSA-MXWW-3QMJ-G8P3

Vulnerability from github – Published: 2026-09-09 12:32 – Updated: 2026-09-09 12:32

Details

The vulnerability is known to have been exploited in the wild by the Mirai_ptea (Rimasuta) and Mirai_aurora botnets for malware propagation and subsequent DDoS activity. The vulnerability was reported to affect firmware dating from 2016, while firmware released after 2017 appears to mitigate the issue by restricting the affected service to the localhost interface (127.0.0.1) instead of exposing it on all interfaces (0.0.0.0).

The affected-device list reported by Netlab includes many D1004NR, D1008NR, D1016NR, D1104, D1104NR, D1108NR, D1116NR, D1132NR, D2116NR, D97xx, D98xx, and D99xx variants and several associated hardware revisions

The exploit is included in some version of rapperbot and exploited in 2026. This assignment has been made to document the active exploitation and lack of documentation from the vendor.

Severity

10.0 (Critical)


                  
                    CVSS:4.0/AV:N/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-2026-87827"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-09T11:17:16Z",
    "severity": "CRITICAL"
  },
  "details": "Certain KGUARD DVR devices running vulnerable firmware expose a system command execution service on all network interfaces without requiring authentication. A remote unauthenticated attacker with network access to the affected service can execute arbitrary system commands on the device, potentially resulting in complete compromise of the DVR.\n\nThe vulnerability is known to have been exploited in the wild by the Mirai_ptea (Rimasuta) and Mirai_aurora botnets for malware propagation and subsequent DDoS activity. The vulnerability was reported to affect firmware dating from 2016, while firmware released after 2017 appears to mitigate the issue by restricting the affected service to the localhost interface (127.0.0.1) instead of exposing it on all interfaces (0.0.0.0).\n\nThe affected-device list reported by Netlab includes many D1004NR, D1008NR, D1016NR, D1104, D1104NR, D1108NR, D1116NR, D1132NR, D2116NR, D97xx, D98xx, and D99xx variants and several associated hardware revisions\n\n\nThe exploit is included in some version of\u00a0rapperbot and exploited in 2026. This assignment has been made to document the active exploitation and lack of documentation from the vendor.",
  "id": "GHSA-mxww-3qmj-g8p3",
  "modified": "2026-09-09T12:32:14Z",
  "published": "2026-09-09T12:32:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-87827"
    },
    {
      "type": "WEB",
      "url": "https://blog.netlab.360.com/mirai_ptea-botnet-is-exploiting-undisclosed-kguard-dvr-vulnerability-en"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/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.

Action not permitted

CVE-2026-87827 (GCVE-0-2026-87827)

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Confirmed Compromise Confidence: 70% Source: previdian

Details

References

FKIE_CVE-2026-87827

GCVE-1-2026-20026 (CVE-2026-87827)

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Confirmed Compromise Confidence: 70% Source: previdian

Details

References

GHSA-MXWW-3QMJ-G8P3

Tags

Sightings

Nomenclature