EUVD-2026-41240
GHSA-cpch-mrj6-mv2v
Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Browser-pivot to loopback gives AV:N with UI:R; overflow-to-RCE reliability makes AC:H; no auth to WebSocket (PR:N); crossing web-to-native trust boundary justifies S:C; memory corruption yields C/I/A:H.
Primary rating from Vendor (GV).
CVSS VectorVendor: GV
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionCVE.org
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 callhandle_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
AnalysisAI
Buffer overflow in GeoVision's GeoWebPlayer addon (also branded "Web Plugin" in GV-VMS and "WS Player" in VMS-Cloud) allows memory corruption and likely code execution in the local WebSocket server process. The handle_connection_info handler for the connectionInfo command copies attacker-controlled JSON strings (including the ip field) into fixed-size stack/heap buffers using unbounded byte-by-byte loops, so an oversized value overruns the buffer. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires the GeoWebPlayer/Web Plugin (WS Player) addon to be installed and its localhost WebSocket server running on the victim host - this addon ships with GeoVision products (GV-VMS, GV-Cloud) but is a discrete component, so hosts without it are not exploitable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The vendor CVSS 3.1 base score is 8.3 (High) with vector AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker lures an operator who has GeoWebPlayer running to a malicious or compromised web page; JavaScript on that page opens a WebSocket to the local GeoWebPlayer server and sends a `connectionInfo` command whose `ip` field is far longer than the destination buffer. The unbounded copy in `handle_connect_info` overruns the buffer, corrupting memory to crash the process or, with reliable exploitation, execute attacker-controlled code in the context of the GeoWebPlayer process. … |
| Remediation | No vendor-released patch version is identified in the available data at time of analysis; monitor the GeoVision cyber security page (https://www.geovision.com.tw/cyber_security.php) and the Talos report (https://talosintelligence.com/vulnerability_reports/TALOS-2026-2375) for a fixed build and apply it once released, citing the exact version the vendor publishes. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all GeoVision video management system deployments, document versions, and notify users that the vulnerability requires authenticated browser access-instruct staff to avoid visiting suspicious links while authenticated to GeoVision systems. …
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Same weakness CWE-120 – Classic Buffer Overflow
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External POC / Exploit Code
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