Vulnerability-Lookup

GHSA-6HHF-75Q4-5PC2

Vulnerability from github – Published: 2026-06-24 06:31 – Updated: 2026-06-24 06:31

Details

GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.

DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it.

Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:

Gateway field stack overflow

The following code is vulnerable to a stack overflow that is attacker-controlled:

  v7 = strlen(g_network_config->gateway);

  memcpy(&reply_buf[216], g_network_config->gateway, v7);

Severity

10.0 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-12847"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-121"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T05:17:26Z",
    "severity": "CRITICAL"
  },
  "details": "GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485.\n\nDVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. \n\n\n\nUpon receiving a UDP message,  the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable:\n\n\n#### Gateway field stack overflow\n\nThe following code is vulnerable to a stack overflow that is attacker-controlled:\n\n\n\n      v7 = strlen(g_network_config-\u003egateway);\n\n      memcpy(\u0026reply_buf[216], g_network_config-\u003egateway, v7);",
  "id": "GHSA-6hhf-75q4-5pc2",
  "modified": "2026-06-24T06:31:45Z",
  "published": "2026-06-24T06:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12847"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2026-2377"
    },
    {
      "type": "WEB",
      "url": "https://www.geovision.com.tw/cyber_security.php"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-12847 (GCVE-0-2026-12847)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:34 – Updated: 2026-06-24 13:16

Title

GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command

Summary

GV-I/O Box 4E is a smart embedded device with 4 input and 4 relays output that can be controlled over Ethernet and RS-485. DVRSearch is a service running by default on the IOBox listening for UDP messages on port 10001. Any user on the network can send messages to this service and interact with it. Upon receiving a UDP message, the server reads at most 1460 bytes into a local buffer and a pointer to the buffer is stored in a global variable: #### Gateway field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v7 = strlen(g_network_config->gateway); memcpy(&reply_buf[216], g_network_config->gateway, v7);

Severity

10 (Critical)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-121 - Stack-based buffer overflow

Assigner

References

2 references

URL	Tags
https://www.geovision.com.tw/cyber_security.php	vendor-advisory
https://talosintelligence.com/vulnerability_repor…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
GeoVision Inc.	GV-I/O Box 4E	Affected: V2.09 Unaffected: v2.12

Date Public

2026-06-17 03:10

Credits

Philippe Laulheret of Cisco Talos Kelly Patterson of Cisco Talos Robert Sherwin of Cisco Talos

Show details on NVD website

JSON

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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.

Action not permitted

GHSA-6HHF-75Q4-5PC2

Gateway field stack overflow

CVE-2026-12847 (GCVE-0-2026-12847)

Tags

Sightings

Nomenclature