CVE-2026-61391 in DS-2CD
Summary
by MITRE • 07/22/2026
There is a stack-based buffer overflow vulnerability in some Hikvision cameras, which may allow authenticated attackers to cause device malfunction by sending specially crafted packets.
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Analysis
by VulDB Data Team • 07/22/2026
This vulnerability represents a critical stack-based buffer overflow flaw that affects certain Hikvision camera models, creating a significant security risk for networked surveillance systems. The issue stems from inadequate input validation within the camera's network processing routines where authenticated attackers can exploit this weakness by transmitting maliciously crafted network packets. The buffer overflow occurs when the device fails to properly bounds-check incoming data before copying it into fixed-size stack buffers, allowing attackers to overwrite adjacent memory locations and potentially execute arbitrary code or cause system crashes.
The technical implementation of this vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions where insufficient bounds checking permits data to overwrite adjacent stack memory. This type of flaw typically occurs in network services that process untrusted input without proper validation mechanisms, making it particularly dangerous in embedded devices like surveillance cameras that operate continuously and often lack sophisticated memory protection features. The authenticated nature of the attack means that an adversary must first establish valid credentials to exploit the vulnerability, though this access level still represents a significant risk given that many surveillance systems may have default or weak credentials.
From an operational perspective, this vulnerability creates substantial risk for organizations relying on Hikvision cameras for security monitoring and network infrastructure protection. Attackers who successfully exploit this flaw can cause device malfunction including system crashes, reboot loops, or potential execution of malicious code that could allow them to gain further access to the network. The impact extends beyond individual device compromise as surveillance systems often form critical components of broader security infrastructures, potentially enabling attackers to establish persistent access points within networks or disrupt security operations. This vulnerability also aligns with ATT&CK technique T1203, which covers legitimate credentials used for persistence and privilege escalation.
Organizations should implement immediate mitigations including firmware updates from Hikvision addressing the specific buffer overflow conditions, network segmentation to limit access to affected devices, and credential hardening measures to reduce attack surface. Additional protective measures include implementing network monitoring solutions to detect anomalous packet patterns that may indicate exploitation attempts, conducting regular security assessments of surveillance infrastructure, and establishing robust patch management procedures. The vulnerability highlights the importance of secure coding practices in embedded systems and demonstrates how even authenticated attacks can lead to significant operational disruptions in critical infrastructure environments where surveillance systems play essential roles in overall security posture.