Vulnerability-Lookup

CVE-2025-34043 (GCVE-0-2025-34043)

Vulnerability from cvelistv5 – Published: 2025-06-26 15:51 – Updated: 2026-07-14 22:25 X_Known Exploited Vulnerability

Shadowserver Previdian

Title

Vacron NVR Remote Command Execution

Summary

A remote command injection vulnerability exists in Vacron Network Video Recorder (NVR) devices v1.4 due to improper input sanitization in the board.cgi script. The vulnerability allows unauthenticated attackers to pass arbitrary commands to the underlying operating system via crafted HTTP requests. These commands are executed with the privileges of the web server process, enabling remote code execution and potential full device compromise. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.

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: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-12-23 19:19 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-20 - Improper Input Validation

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://www.tenable.com/plugins/nessus/104124	third-party-advisory
https://www.sonicwall.com/blog/vacron-network-vid…	third-party-advisorysignaturetechnical-description
https://ssd-disclosure.com/ssd-advisory-vacron-nv…	third-party-advisoryexploit
https://www.broadcom.com/support/security-center/…	third-party-advisory
https://vulncheck.com/advisories/vacron-nvr-remot…	third-party-advisory
https://www.vacron.com/	product

Impacted products

1 product

Vendor	Product	Version	CPE status
Vacron	Network Video Recorder (NVR)	Affected: 1.4 (custom) cpe:2.3:h:nuuo:network_video_recorder:1.4:::::::*

Shadowserver

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: 79af8766-9cdc-48f4-9546-bb3fa0d58c31

Vulnerability ID: CVE-2025-34043

Status: Confirmed

Status Updated: 2026-07-20 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2026-01-07

Asserted: 2026-01-07

Last Seen: 2026-07-20

Scope

Asset Exposure: ['internet-facing']

Notes: Affected: Vacron / Network Video Recorder (NVR) | Class: video-system | IoT: yes | In CISA KEV: no | Honeypot connections on 2026-07-20: 89

Evidence

Type: Honeypot

Signal: In The Wild Attempts

Confidence: 70%

Source: shadowserver

Details

1D	87
Iot	yes
Feed	Shadowserver Foundation honeypot/exploited-vulnerabilities
Type	http-scan
Class	video-system
7D Avg	90
Vendor	Vacron
30D Avg	84
90D Avg	85
Product	Network Video Recorder (NVR)
Cisa Kev	no
Connections	89
Observation Date	2026-07-20
Vulnerability Class	None
Vulnerability Score	None
Vulnerability Severity	None

References

Created: 2026-06-30 09:22 UTC | Updated: 2026-07-22 01:00 UTC

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

KEV entry ID: e4965e51-9c32-4592-bb55-d5cb590a9f59

Vulnerability ID: CVE-2025-34043

Status: Confirmed

Status Updated: 2026-01-10 00:00 UTC

Exploited: Yes

Timestamps

First Seen: 2026-01-10

Asserted: 2026-01-10

Scope

Notes: KEVIntel entry: Vacron NVR Remote Command Execution | Affected: Vacron / Network Video Recorder (NVR) | CVSS: 10.0 (CRITICAL) | Used in malware: unknown | Not yet in CISA KEV: True

Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details

Feed	KEVIntel (kevintel.com)
Title	Vacron NVR Remote Command Execution
Vendor	Vacron
Product	Network Video Recorder (NVR)
Added Date	2026-01-10T00:00:00.000Z
Cvss Score	10.0
Epss Score	None
Cvss Severity	CRITICAL
Epss Percentile	None
Used In Malware	unknown
Ahead Of Cisa Kev	None
Not Yet In Cisa Kev	True

References

Created: 2026-06-23 14:03 UTC | Updated: 2026-07-10 06:14 UTC

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-34043

Vulnerability from fkie_nvd - Published: 2025-06-26 16:15 - Updated: 2026-06-17 09:13

Shadowserver 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
	disclosure@vulncheck.com	https://ssd-disclosure.com/ssd-advisory-vacron-nvr-remote-command-execution/
	disclosure@vulncheck.com	https://vulncheck.com/advisories/vacron-nvr-remote-command-execution
	disclosure@vulncheck.com	https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=30386
	disclosure@vulncheck.com	https://www.sonicwall.com/blog/vacron-network-video-recorder-remote-command-execution
	disclosure@vulncheck.com	https://www.tenable.com/plugins/nessus/104124
	disclosure@vulncheck.com	https://www.vacron.com/
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://ssd-disclosure.com/ssd-advisory-vacron-nvr-remote-command-execution/

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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    {
      "lang": "en",
      "value": "A remote command injection vulnerability exists in Vacron Network Video Recorder (NVR) devices v1.4 due to improper input sanitization in the board.cgi script. The vulnerability allows unauthenticated attackers to pass arbitrary commands to the underlying operating system via crafted HTTP requests. These commands are executed with the privileges of the web server process, enabling remote code execution and potential full device compromise. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de inyecci\u00f3n remota de comandos en los dispositivos Vacron Network Video Recorder (NVR) v1.4 debido a una depuraci\u00f3n incorrecta de la entrada en el script board.cgi. Esta vulnerabilidad permite a atacantes no autenticados enviar comandos arbitrarios al sistema operativo subyacente mediante solicitudes HTTP manipuladas. Estos comandos se ejecutan con los privilegios del proceso del servidor web, lo que permite la ejecuci\u00f3n remota de c\u00f3digo y la posible vulneraci\u00f3n total del dispositivo."
    }
  ],
  "id": "CVE-2025-34043",
  "lastModified": "2026-06-17T09:13:22.027",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 10.0,
          "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: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": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-34043",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-23T19:19:27.561721Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-06-26T16:15:27.490",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://ssd-disclosure.com/ssd-advisory-vacron-nvr-remote-command-execution/"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://vulncheck.com/advisories/vacron-nvr-remote-command-execution"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=30386"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.sonicwall.com/blog/vacron-network-video-recorder-remote-command-execution"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.tenable.com/plugins/nessus/104124"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vacron.com/"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://ssd-disclosure.com/ssd-advisory-vacron-nvr-remote-command-execution/"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-944P-P7RX-XV9R

Vulnerability from github – Published: 2025-06-26 18:31 – Updated: 2025-06-26 18:31

Details

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-2025-34043"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-06-26T16:15:27Z",
    "severity": "CRITICAL"
  },
  "details": "A remote command injection vulnerability exists in Vacron Network Video Recorder (NVR) devices v1.4 due to improper input sanitization in the board.cgi script. The vulnerability allows unauthenticated attackers to pass arbitrary commands to the underlying operating system via crafted HTTP requests. These commands are executed with the privileges of the web server process, enabling remote code execution and potential full device compromise.",
  "id": "GHSA-944p-p7rx-xv9r",
  "modified": "2025-06-26T18:31:28Z",
  "published": "2025-06-26T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-34043"
    },
    {
      "type": "WEB",
      "url": "https://ssd-disclosure.com/ssd-advisory-vacron-nvr-remote-command-execution"
    },
    {
      "type": "WEB",
      "url": "https://vulncheck.com/advisories/vacron-nvr-remote-command-execution"
    },
    {
      "type": "WEB",
      "url": "https://www.broadcom.com/support/security-center/attacksignatures/detail?asid=30386"
    },
    {
      "type": "WEB",
      "url": "https://www.sonicwall.com/blog/vacron-network-video-recorder-remote-command-execution"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/plugins/nessus/104124"
    },
    {
      "type": "WEB",
      "url": "https://www.vacron.com"
    }
  ],
  "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.
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-2025-34043 (GCVE-0-2025-34043)

Shadowserver

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Honeypot In The Wild Attempts Confidence: 70% Source: shadowserver

Details

References

Previdian

Known Exploited Vulnerability - GCVE BCP-07 Compliant

Timestamps

Scope

Evidence

Public Report Successful Exploitation Confidence: 70% Source: kevintel

Details

References

FKIE_CVE-2025-34043

GHSA-944P-P7RX-XV9R

Tags

Sightings

Nomenclature

Related by attack behaviour