CVE-2026-51598 in MIPC252W IP Camera
Summary
by MITRE • 07/09/2026
An input validation vulnerability in the RTSP service of MERCURY MIPC252W IP Camera v1.0.5 Build 230306 Rel.79931n) allows an unauthenticated, network-adjacent attacker to cause a denial of service via a crafted DESCRIBE request with a malformed URL in the request line.
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Analysis
by VulDB Data Team • 07/09/2026
This vulnerability resides within the real time streaming protocol rtsp service of mercury mipc252w ip camera firmware version 105 build 230306 rel79931n representing a critical input validation flaw that can be exploited by unauthenticated attackers within network proximity. The specific weakness manifests when the rtsp service processes a crafted describe request containing a malformed url within the request line. this vulnerability directly maps to common weakness enumeration cwecwe-20 input validation and injection flaws which constitute one of the most prevalent categories of security weaknesses in networked applications according to the cwe top 25 list. the attack vector requires only network adjacency meaning an attacker must be on the same local network segment as the target device though no authentication credentials are necessary to initiate the exploit.
the operational impact of this vulnerability extends beyond simple denial of service as it represents a fundamental breakdown in the rtsp service's ability to properly validate and sanitize incoming request data. when the camera receives a malformed url within the describe request line it fails to properly handle the invalid input which likely results in a crash or restart of the rtsp service component. this disruption affects legitimate users who rely on real time video streaming capabilities of the ip camera while simultaneously creating potential opportunities for further exploitation. the vulnerability affects the core streaming functionality of the device and could potentially be leveraged as a stepping stone for more sophisticated attacks against the device's broader network services.
from an attack perspective this weakness aligns with techniques described in the mitre attck framework under the initial access and execution phases where adversaries establish footholds within target networks through service exploitation. the low complexity required to exploit this vulnerability means that even basic attackers could potentially disrupt operations of ip camera deployments in industrial control systems or security monitoring environments. network administrators should consider this vulnerability particularly concerning when evaluating the security posture of embedded devices within their infrastructure as ip cameras often serve as entry points for lateral movement attacks.
mitigation strategies should include immediate firmware updates from mercury to address the input validation flaw and ensure that all affected devices receive patched versions. network segmentation techniques can help reduce the attack surface by isolating ip camera deployments from critical network segments and implementing proper access controls. additional protective measures include monitoring rtsp traffic for malformed requests and implementing network intrusion detection systems that can identify suspicious patterns in rtsp protocol usage. organizations should also consider disabling unnecessary rtsp services when not actively required and regularly audit their embedded device inventory to identify and remediate similar vulnerabilities across their entire network infrastructure. the vulnerability serves as a reminder of the importance of robust input validation in network services and the potential for seemingly minor flaws to create significant operational disruptions in security monitoring equipment.