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

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Summary

CVECVE-2026-12847
StatePUBLISHED
AssignerGV
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-24 05:17:26 UTC
Updated2026-06-24 05:17:26 UTC
DescriptionGV-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);

Risk And Classification

Primary CVSS: v3.1 10 CRITICAL from 0df08a0e-a200-4957-9bb0-084f562506f9

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

Problem Types: CWE-121 | CWE-121 CWE-121 Stack-based buffer overflow

VersionSourceTypeScoreSeverityVector
3.10df08a0e-a200-4957-9bb0-084f562506f9Secondary10CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNACVSS10CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GeoVision Inc. GV-I/O Box 4E affected V2.09 Linux
CNA GeoVision Inc. GV-I/O Box 4E unaffected v2.12 Linux

References

ReferenceSourceLinkTags
www.geovision.com.tw/cyber_security.php 0df08a0e-a200-4957-9bb0-084f562506f9 www.geovision.com.tw
talosintelligence.com/vulnerability_reports/TALOS-2026-2377 0df08a0e-a200-4957-9bb0-084f562506f9 talosintelligence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Philippe Laulheret of Cisco Talos (en)

CNA: Kelly Patterson of Cisco Talos (en)

CNA: Robert Sherwin of Cisco Talos (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-04-21T07:34:00.000ZFinder Reports Vulnerabilties to Vendor
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