Vulnerability-Lookup

GHSA-FX96-C5XR-Q273

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

Details

libNetSetObj.so is an internal library used by various binaries on the device to configure the network stack (start and stop various services, configure IP, Netmask, gateway, dns, etc.)

CNetSetObj::m_F_n_Set_DNS_Addr command injection

The following function can take up to two addresses, performs no sanitization and then calls system. This is a classic command injection vulnerability. The function is reachable from both the network-exposed DVRSearch service and the Network.cgi endpoint.

int __fastcall CNetSetObj::m_F_n_Set_DNS_Addr(CNetSetObj *this, char *dns1, char *dns2)

{

  int result; // r0

  char v5[80]; // [sp+0h] [bp-50h] BYREF



  if ( !dns1 )

    result = 0;

  if ( dns1 )

  {

    sprintf(v5, "/bin/echo nameserver %s > /etc/resolv.conf", dns1);  // attacker controlled dns1 field

    system(v5);

    if ( dns2 )

    {

      sprintf(v5, "/bin/echo nameserver %s >> /etc/resolv.conf", dns2);

      system(v5);

    }

    return 1;

  }

  return result;

Severity

9.1 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-12851"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T05:17:27Z",
    "severity": "CRITICAL"
  },
  "details": "Multiple OS command injection vulnerabilities exist in the libNetSetObj.so functionality of GeoVision GV-I/O Box 4E 2.09. A specially crafted network packet can lead to command execution. An attacker can send a network request to trigger this vulnerability.\n\n\n`libNetSetObj.so` is an internal library used by various binaries on the device to configure the network stack (start and stop various services, configure IP, Netmask, gateway, dns, etc.)\n\n\n#### CNetSetObj::m_F_n_Set_DNS_Addr command injection\n\nThe following function can take up to two addresses, performs no sanitization and then calls `system`. This is a classic command injection vulnerability. The function is reachable from both the network-exposed `DVRSearch` service and the `Network.cgi` endpoint. \n\n\n\n    int __fastcall CNetSetObj::m_F_n_Set_DNS_Addr(CNetSetObj *this, char *dns1, char *dns2)\n\n    {\n\n      int result; // r0\n\n      char v5[80]; // [sp+0h] [bp-50h] BYREF\n\n\n\n      if ( !dns1 )\n\n        result = 0;\n\n      if ( dns1 )\n\n      {\n\n        sprintf(v5, \"/bin/echo nameserver %s \u003e /etc/resolv.conf\", dns1);  // attacker controlled dns1 field\n\n        system(v5);\n\n        if ( dns2 )\n\n        {\n\n          sprintf(v5, \"/bin/echo nameserver %s \u003e\u003e /etc/resolv.conf\", dns2);\n\n          system(v5);\n\n        }\n\n        return 1;\n\n      }\n\n      return result;",
  "id": "GHSA-fx96-c5xr-q273",
  "modified": "2026-06-24T06:31:46Z",
  "published": "2026-06-24T06:31:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12851"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2026-2379"
    },
    {
      "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:H/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-12851 (GCVE-0-2026-12851)

Vulnerability from cvelistv5 – Published: 2026-06-24 03:40 – Updated: 2026-06-24 12:50

Title

GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability

Summary

Multiple OS command injection vulnerabilities exist in the libNetSetObj.so functionality of GeoVision GV-I/O Box 4E 2.09. A specially crafted network packet can lead to command execution. An attacker can send a network request to trigger this vulnerability. `libNetSetObj.so` is an internal library used by various binaries on the device to configure the network stack (start and stop various services, configure IP, Netmask, gateway, dns, etc.) #### CNetSetObj::m_F_n_Set_DNS_Addr command injection The following function can take up to two addresses, performs no sanitization and then calls `system`. This is a classic command injection vulnerability. The function is reachable from both the network-exposed `DVRSearch` service and the `Network.cgi` endpoint. int __fastcall CNetSetObj::m_F_n_Set_DNS_Addr(CNetSetObj *this, char *dns1, char *dns2) { int result; // r0 char v5[80]; // [sp+0h] [bp-50h] BYREF if ( !dns1 ) result = 0; if ( dns1 ) { sprintf(v5, "/bin/echo nameserver %s > /etc/resolv.conf", dns1); // attacker controlled dns1 field system(v5); if ( dns2 ) { sprintf(v5, "/bin/echo nameserver %s >> /etc/resolv.conf", dns2); system(v5); } return 1; } return result;

Severity

9.1 (Critical)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')

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 03:31

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-FX96-C5XR-Q273

CNetSetObj::m_F_n_Set_DNS_Addr command injection

CVE-2026-12851 (GCVE-0-2026-12851)

Tags

Sightings

Nomenclature