CVE-2026-12485: GeoVision GV-I/O Box 4E stack overflow in DVRSearch service

CVE-2026-12485 · Severity: critical · CVSS 10 · Published 2026-06-24

The GeoVision GV-I/O Box 4E, an industrial device used to control physical inputs and relays over a network, contains a critical security flaw in its DVRSearch service. An unauthenticated attacker can send a specially crafted network message to the device to take complete control of it. This could allow an attacker to disrupt operations, manipulate physical relay outputs, or use the device as a foothold in the corporate network.

Technologies: Geovision GV-I/O Box 4E. Vendors: Geovision.

Quick answers

Is CVE-2026-12485 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-12485 being exploited in the wild.
How severe is CVE-2026-12485?
Critical severity, with a CVSS score of 10, published 24 June 2026.
Which products and versions are affected?
Geovision GV-I/O Box 4E 2.09.
Is there a fix for CVE-2026-12485?
A patch was published on 2026-04-28: Vendor released firmware patch (v2.12) Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-12485 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-12485?
Check whether you run Geovision GV-I/O Box 4E at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A stack-based buffer overflow exists in the DVRSearch service of GeoVision GV-I/O Box 4E firmware version 2.09. The service listens for UDP messages on port 10001 and fails to properly validate the length of input when processing the CMD_IP_SET command. Specifically, the application uses strlen() on attacker-controlled network configuration strings (such as the IP address, Net Mask, Gateway, and DNS fields) and subsequently performs a memcpy() into a fixed-size local buffer (reply_buf). An unauthenticated remote attacker can exploit this by sending a crafted UDP packet to trigger the overflow, leading to arbitrary code execution with root privileges. The vendor has released firmware version 2.12 to address these vulnerabilities.

Affected products

  • GeoVision Inc. GV-I/O Box 4E 2.09

Timeline

  • 2026-04-21: disclosed: Initial vendor contact and disclosure by Cisco Talos
  • 2026-04-28: patched: Vendor released firmware patch (v2.12)
  • 2026-06-24: advisory: Public advisory and CVE publication

References

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