CVE-2026-57270: GeoWebPlayer WebSocket Index Out-of-Bounds Memory Access

Technical summary

GeoWebPlayer implements a WebSocket server that handles commands from localhost and remote clients. The vulnerability stems from improper bounds checking on array indices used across multiple commands (notably the 'play' command). When a user-controlled index parameter is passed without validation, attackers can access memory regions outside intended array boundaries. This classic out-of-bounds access flaw (CWE-129) can be leveraged to read sensitive data, overwrite memory structures, or crash the application. The attack requires network access and user interaction (reflected in the CVSS vector AV:N/AC:H/UI:R), making it exploitable in scenarios where users visit a malicious webpage while GeoWebPlayer is installed.

Business impact

For organizations deploying GeoVision surveillance systems, this vulnerability threatens physical security infrastructure. Successful exploitation could allow attackers to exfiltrate video feeds, metadata, or system credentials; modify recorded footage or access controls; or disrupt monitoring capabilities entirely. In regulated environments (healthcare, finance, government), compromise of surveillance systems may trigger compliance violations and incident reporting obligations. The HIGH severity rating reflects the potential for complete compromise of video management functions.

Affected systems

GeoWebPlayer addon as distributed with GeoVision products including GV-VMS, GV-Cloud, and associated web interfaces. The addon is installed as a browser extension to enhance web interface capabilities. Any organization running GeoVision surveillance deployments with GeoWebPlayer enabled is potentially affected. Specific vulnerable version ranges should be verified against GeoVision's official security advisories.

Exploitability

Exploitation requires network access and user interaction (a user must be logged into or interacting with the GeoVision web interface while GeoWebPlayer is active). The vulnerability is not unauthenticated remote code execution; however, the combination of network reachability and the likelihood of GeoWebPlayer being active during normal surveillance system operation makes practical exploitation feasible. Currently not listed in the CISA Known Exploited Vulnerabilities catalog, but the simplicity of the index validation flaw suggests public tooling could emerge.

Remediation

Apply GeoVision security updates that implement proper bounds checking on array indices in the GeoWebPlayer WebSocket server. Verify the specific patch version by consulting GeoVision's official security bulletin. Organizations should prioritize patching in environments where GeoVision systems handle sensitive video or access control data. Until patching is possible, consider restricting network access to the GeoVision web interface and disabling GeoWebPlayer if its functionality is not critical.

Patch guidance

Check GeoVision's official security advisory and release notes for patched versions of GeoWebPlayer. Patches should be tested in a non-production environment first, as GeoWebPlayer is integral to web interface functionality for some deployments. Verify compatibility with your GV-VMS or GV-Cloud version before deploying to production. If version-specific guidance is not immediately available, contact GeoVision support for recommended patching timelines and any interim workarounds.

Detection guidance

Monitor WebSocket traffic to GeoWebPlayer for unusual index parameters or commands that deviate from normal surveillance operation. Implement network segmentation to restrict access to the GeoVision web interface from trusted networks only. Enable detailed logging on the GeoVision system (if available) to capture WebSocket command parameters. Intrusion detection systems should flag repeated or sequential index values outside typical operational ranges, or commands sent from unexpected source IPs.

Why prioritize this

HIGH severity score (8.3) reflects the combination of high confidentiality, integrity, and availability impact to surveillance systems. The requirement for user interaction and network access reduces immediate risk compared to unauthenticated remote exploits, but surveillance systems are typically long-lived assets with delayed patching cycles. Organizations should treat this as a priority due to the out-of-bounds memory access nature—such flaws often lead to escalation once weaponized. Current lack of KEV status suggests a narrow window before active exploitation becomes widespread.

Risk score, explained

The CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H vector yields 8.3 (HIGH). Network attack vector (AV:N) reflects the WebSocket server's reachability. Attack complexity is high (AC:H) due to the need for precise index crafting and user interaction. No privileges required (PR:N) for the network request itself, but impact scope is changed (S:C), meaning consequences extend beyond the vulnerable component to the broader GeoVision system and monitored physical infrastructure. All three impact metrics (CIA) are rated high because out-of-bounds access can read secrets, modify system state, and crash services.

Frequently asked questions