CVE-2026-57275: CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in GeoVision Inc. GeoWebPlayer
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. One of them, `connectionInfo` is meant to provide the necessary details to connect to a camera. The handler associated with this command that we call`handle_connection_info` contains multiple instances of string copy that can overflow. The function `handle_connect_info` copies attacker-controlled JSON strings into fixed-size buffers using manual byte-by-byte loops that do not enforce length limits. #### Buffer Overflow in username field (key present)
AI Analysis
Technical Summary
GeoWebPlayer (also known as Web Plugin or WS Player) includes a websocket server that processes commands from localhost. The 'handle_connection_info' function, which processes the 'connectionInfo' command, performs multiple string copy operations using manual byte-by-byte loops without enforcing length limits. This results in a buffer overflow vulnerability (CWE-120) in the username field when processing attacker-controlled JSON input. The vulnerability is present in version 1.1.1.0 of GeoWebPlayer. The CVSS 3.1 base score is 8.3, reflecting network attack vector with high complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability with scope changed.
Potential Impact
Successful exploitation of this vulnerability can lead to a buffer overflow condition, potentially allowing an attacker to execute arbitrary code, cause denial of service, or compromise the confidentiality and integrity of the affected system. The vulnerability affects the websocket server component that is critical for the operation of GeoVision's web interfaces, thus impacting the availability and security of connected camera systems.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is provided, restrict access to the localhost interface where the websocket server listens, and monitor for unusual activity related to the GeoWebPlayer websocket server. Avoid exposing the vulnerable component to untrusted users or networks.
CVE-2026-57275: CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') in GeoVision Inc. GeoWebPlayer
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. One of them, `connectionInfo` is meant to provide the necessary details to connect to a camera. The handler associated with this command that we call`handle_connection_info` contains multiple instances of string copy that can overflow. The function `handle_connect_info` copies attacker-controlled JSON strings into fixed-size buffers using manual byte-by-byte loops that do not enforce length limits. #### Buffer Overflow in username field (key present)
CVSS v3.1
Score 8.3high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GeoWebPlayer (also known as Web Plugin or WS Player) includes a websocket server that processes commands from localhost. The 'handle_connection_info' function, which processes the 'connectionInfo' command, performs multiple string copy operations using manual byte-by-byte loops without enforcing length limits. This results in a buffer overflow vulnerability (CWE-120) in the username field when processing attacker-controlled JSON input. The vulnerability is present in version 1.1.1.0 of GeoWebPlayer. The CVSS 3.1 base score is 8.3, reflecting network attack vector with high complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability with scope changed.
Potential Impact
Successful exploitation of this vulnerability can lead to a buffer overflow condition, potentially allowing an attacker to execute arbitrary code, cause denial of service, or compromise the confidentiality and integrity of the affected system. The vulnerability affects the websocket server component that is critical for the operation of GeoVision's web interfaces, thus impacting the availability and security of connected camera systems.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is provided, restrict access to the localhost interface where the websocket server listens, and monitor for unusual activity related to the GeoWebPlayer websocket server. Avoid exposing the vulnerable component to untrusted users or networks.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GV
- Date Reserved
- 2026-06-24T05:48:05.704Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a45d94127e9c7971906c92f
Added to database: 07/02/2026, 03:21:37 UTC
Last enriched: 07/09/2026, 09:24:18 UTC
Last updated: 08/15/2026, 12:41:10 UTC
Views: 145
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