CVE-2026-57278

GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability

Published Jul 2, 2026 CVSS 3.1 · 8.3 High EPSS < 1% KEV · Not listed
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 ip field

Remediation

Vendor Solution

The vulnerability has been patched with GeoWebPlayer V1.1.3.0

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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 ip field
Title GeoVision GeoWebPlayer Websocket Server connectInfo handler stack-based buffer overflow vulnerability
First Time appeared Geovision Inc.
Geovision Inc. geowebplayer
Weaknesses CWE-120
CPEs cpe:2.3:a:geovision_inc.:geowebplayer:v1.1.1.0:*:64_bit:*:*:*:*:*
cpe:2.3:a:geovision_inc.:geowebplayer:v1.1.1.0:*:windows:*:*:*:*:*
cpe:2.3:a:geovision_inc.:geowebplayer:v1.1.3.0:*:64_bit:*:*:*:*:*
cpe:2.3:a:geovision_inc.:geowebplayer:v1.1.3.0:*:windows:*:*:*:*:*
Vendors & Products Geovision Inc.
Geovision Inc. geowebplayer
References
Metrics cvssV3_1

{'score': 8.3, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GV
Published
Updated
Jul 2, 2026, 12:33 PM
Reserved
Jun 24, 2026, 5:48 AM
Status
Deferred
Published
Jul 2, 2026, 4:17 AM
Modified
Oct 25, 2026, 9:10 PM