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CVE-2026-12848— GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command

Quick assessment

Affected
GeoVision Inc. GV-I/O Box 4E
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GeoVision GV-I/O Box 4E是日本GeoVision公司的一款用于安全监控系统的网络输入输出扩展控制模块。 GV-I/O Box 4E V2.09版本存在缓冲区错误漏洞，该漏洞源于DNS字段处理存在栈缓冲区溢出，可能导致攻击者控制崩溃。

CVSS 10.0 · Critical EPSS 0.60% · P47

Affected Version Matrix 2

VendorProduct Version RangeStatus
GeoVision Inc. GV-I/O Box 4E V2.09 affected
v2.12 unaffected
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I. Basic Information for CVE-2026-12848

Vulnerability Information
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Vulnerability Title
GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
Source: CVE Program / CVE List V5
Vulnerability Description
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: #### DNS field stack overflow The following code is vulnerable to a stack overflow that is attacker-controlled: v8 = strlen(g_network_config->dns_addr); memcpy(&reply_buf[248], g_network_config->dns_addr, v8);
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
GeoVision GV-I/O Box 4E 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GeoVision GV-I/O Box 4E是日本GeoVision公司的一款用于安全监控系统的网络输入输出扩展控制模块。 GV-I/O Box 4E V2.09版本存在缓冲区错误漏洞，该漏洞源于DNS字段处理存在栈缓冲区溢出，可能导致攻击者控制崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GeoVision Inc. GV-I/O Box 4E V2.09 -

II. Public POCs for CVE-2026-12848

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III. Intelligence Information for CVE-2026-12848

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Vendor Advisories for CVE-2026-12848 (1)

Vendor Pages for CVE-2026-12848 (1)

Same Patch Batch · GeoVision Inc. · 2026-06-24 · 9 CVEs total

CVE-2026-12847 10.0 CRITICAL GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
CVE-2026-12846 10.0 CRITICAL GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
CVE-2026-12485 10.0 CRITICAL GeoVision GV-I/O Box DVRSearch buffer overflow vulnerabilities in CMD_IP_SET command
CVE-2026-12851 9.1 CRITICAL GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability
CVE-2026-12486 9.1 CRITICAL GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability
CVE-2026-12849 9.1 CRITICAL GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability
CVE-2026-12850 9.1 CRITICAL GeoVision GV-I/O Box 4E libNetSetObj.so OS command injection vulnerability
CVE-2026-12488 6.2 MEDIUM GeoVision GV-VMS V20 GV-Cloud memory corruption vulnerability

IV. Related Vulnerabilities

Same product: GV-I/O Box 4E
Same vendor: GeoVision Inc.
Same weakness: CWE-121

V. Comments for CVE-2026-12848

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