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CVE-2026-57266— GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability

Quick assessment

Affected
GeoVision Inc. GeoWebPlayer
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 GeoWebPlayer是中国GeoVision公司的一款媒体设备的语音视频功能模块。 GeoVision GeoWebPlayer V1.1.1.0版本存在输入验证错误漏洞，该漏洞源于对index值未进行有效范围检查，导致越界访问多个数组，可能导致攻击者通过本地主机的Websocket服务器命令执行任意操作。

CVSS 8.3 · High EPSS 0.37% · P29

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 2

VendorProduct Version RangeStatus
GeoVision Inc. GeoWebPlayer V1.1.1.0 affected
V1.1.3.0 unaffected
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I. Basic Information for CVE-2026-57266

Vulnerability Information
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Vulnerability Title
GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
GeoWebPlayer (also called "Web Plugin" in the GV-VMS documentation and "WS Player" for VMS-Cloud) is an addon that can be installed with various GeoVision software (GV-VMS, GV-Cloud, ...). It creates a websocket server that expands the capabilities of the various web-interfaces provided by the GeoVision software and may be necessary for them to function properly. The Websocket server can accept various commands coming from localhost. Many of the commands will take an `index` value that is then used to access various arrays to enter critical sections, perform various actions via function calls, etc. However the `index` value is usually not checked for valid range, and as such it can be used to access multiple arrays out-of-bound. #### 2wayAudio command index-out-of-bound
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对数组索引的验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
GeoVision GeoWebPlayer 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GeoVision GeoWebPlayer是中国GeoVision公司的一款媒体设备的语音视频功能模块。 GeoVision GeoWebPlayer V1.1.1.0版本存在输入验证错误漏洞，该漏洞源于对index值未进行有效范围检查，导致越界访问多个数组，可能导致攻击者通过本地主机的Websocket服务器命令执行任意操作。
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. GeoWebPlayer V1.1.1.0 -

II. Public POCs for CVE-2026-57266

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III. Intelligence Information for CVE-2026-57266

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Vendor Advisories for CVE-2026-57266 (1)

Vendor Pages for CVE-2026-57266 (1)

Same Patch Batch · GeoVision Inc. · 2026-07-02 · 18 CVEs total

CVE-2026-13125 8.8 HIGH GeoVision GeoWebPlayer 1.1.1.0 Websocket Server function vulnerability
CVE-2026-57278 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-13131 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-13132 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57270 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57276 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-57273 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-57268 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57275 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-57274 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-57269 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57272 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57264 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57267 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57277 8.3 HIGH GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vu
CVE-2026-57265 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability
CVE-2026-57271 8.3 HIGH GeoVision GeoWebPlayer Websocket Server out-of-bounds read vulnerability

IV. Related Vulnerabilities

Same product: GeoWebPlayer
Same vendor: GeoVision Inc.
Same weakness: CWE-129

V. Comments for CVE-2026-57266

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