External risk intelligence

GeoVision GV-LPC2011 and GV-LPC2211 RTSP Stack Buffer Overflow Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-57879

The vulnerability affects a network-connected device (GeoVision IP camera/system) that processes RTSP requests. Devices of this type are commonly deployed with internet-facing network interfaces to allow remote viewing and management, making the RTSP service a typical entry point reachable from the public internet in standard deployment patterns.

Buffer Overflow

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A critical vulnerability has been identified in GeoVision's GV-LPC2011 and GV-LPC2211 devices, specifically within the ssvr component. This issue allows unauthenticated remote attackers to potentially execute arbitrary code by sending specially crafted network requests. The primary concern is confirming if these devices are deployed and accessible in a manner that exposes them to this threat.

Unauthenticated attackers can crash or control affected devices.
Impacts network-connected security cameras and systems.
Confirm relevance and potential exposure within our environment.

Attack Path

How an attacker could exploit the issue

An attacker can reach the vulnerable GeoVision device over the network without needing any credentials. By sending a specially crafted RTSP request, the attacker can trigger a flaw in how the device handles custom authentication data. This flaw can lead to memory corruption, a denial of service, or the execution of arbitrary code on the device.

No authentication required to access.
Crafted RTSP authentication data triggers vulnerability.
Memory corruption, denial of service, or code execution.

Live Threat

Current exploitation, exposure, and threat context

When supported by the advisory, an unauthenticated stack-based buffer overflow in the GeoVision ssvr could allow a remote attacker to corrupt memory, leading to a denial of service or potentially arbitrary code execution by sending a specially crafted RTSP request.

System memory corruption.
Crafted RTSP request sent remotely.
Denial of service or code execution.

Operational Fix

Recommended remediation, mitigation, and detection steps

System owners and network/security teams are most likely responsible for addressing this critical vulnerability, as it affects network-connected devices accessible remotely. The initial practical step involves identifying all instances of the affected GeoVision hardware, confirming their network exposure and business criticality, and then assigning an accountable owner to plan remediation based on the assessed risk.

System owners should own this issue.
Verify network exposure and business criticality.
Plan remediation based on identified risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

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Frequently asked questions

What is the GeoVision GV-LPC2011 and GV-LPC2211?

These are specialized network-connected hardware devices often used as license plate recognition cameras or advanced surveillance systems. The affected 'ssvr' component acts as the underlying service responsible for managing network communications, including the RTSP (Real-Time Streaming Protocol) streams that transmit video data to remote management consoles or recording servers.

How does CVE-2026-57879 impact these devices?

This vulnerability is a stack-based buffer overflow, categorized as CWE-121. In plain terms, the software fails to verify the size of incoming data before storing it in a specific memory area. If an attacker sends a malicious RTSP authentication request that is too large for the allocated space, it overwrites adjacent memory, which can cause the system to crash, stop functioning, or run unauthorized commands.

Does any specific action trigger this vulnerability?

The flaw is triggered specifically when the device receives an RTSP request containing custom authentication data that exceeds memory bounds. Simply having the device powered on or connected to a network is not enough; the attacker must actively transmit a malformed packet specifically formatted to exploit the faulty processing logic in the authentication handshake.

Why should I be concerned about my network exposure?

Halo Surface Signal indicates that these GeoVision systems often use RTSP services that are reachable from the public internet to facilitate remote viewing. Because the vulnerability does not require authentication, any device exposed directly to the internet is at higher risk, as attackers can reach the vulnerable service without needing valid credentials or being inside your local network.

What is the first step to address this issue?

Begin by creating an inventory of all GV-LPC2011 and GV-LPC2211 units in your environment. Once identified, verify whether these devices are accessible from the internet. If you find units that are publicly reachable, prioritize restricting access to them at the network perimeter while you identify the device owners and prepare to apply vendor-provided updates.

References

www.geovision.com.tw/cyber_security.php

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.