CVE-2026-12211: Intelbras iNVU 7016 FT Path Traversal Vulnerability Analysis

Technical summary

The vulnerability is a classic path traversal flaw (CWE-22) residing in the web interface component of the Intelbras iNVU 7016 FT network video recorder. The affected endpoint /RPC2_Loadfile/syslog/ fails to properly validate or sanitize user-supplied path input, allowing authenticated high-privilege users to traverse the filesystem and read sensitive files. The CVSS v3.1 score of 2.7 (LOW) reflects the requirement for high privilege access (PR:H) and the confidentiality-only impact; no integrity or availability compromise occurs. The flaw does not require user interaction and is network-reachable, but privilege escalation is a practical prerequisite.

Business impact

For organizations deploying Intelbras iNVU 7016 FT systems, this vulnerability poses a minimal but real risk to system confidentiality. An administrator with legitimate but excessive permissions—or an attacker who has compromised administrator credentials—could extract sensitive configuration files, logs, or other data from the device. This could facilitate lateral movement, compliance violations, or exposure of network intelligence. However, the threat is substantially mitigated by the need for high-privilege authentication and the availability of vendor patches. Devices running unpatched firmware should be prioritized for update if they are internet-facing or operate in untrusted network segments.

Affected systems

Intelbras iNVU 7016 FT running firmware version 3.004.00IB000.0.T Build 2025-09-26 is confirmed affected. Organizations should verify whether they operate this model and firmware version via device management consoles or firmware inventory tools. The iNVU 7016 FT is a 16-channel network video recorder commonly deployed in surveillance infrastructure; affected organizations likely operate in retail, industrial, or security-critical environments.

Exploitability

Exploitation requires an authenticated attacker with high administrative privileges (PR:H per CVSS), significantly limiting the practical attack surface. The attack is network-accessible and does not require user interaction, but the privilege requirement means exploitation typically follows credential compromise or insider threat scenarios. Public exploit proof-of-concepts are available, but effective weaponization remains restricted to threat actors with valid admin access or those who can credential-compromise a high-privilege account. The low CVSS score appropriately reflects these constraints; the vulnerability is not a critical jumping-off point for unauthenticated remote attacks.

Remediation

Intelbras has released a fixed firmware version for this product. Organizations should consult the vendor's security advisory to identify the patched firmware version and deployment timeline. Firmware updates on NVRs should be coordinated with business continuity and change management processes, as they may temporarily interrupt recording or require device reboot. In the interim, network segmentation and access control restrictions can reduce exposure: restrict administrative access to the NVR web interface to trusted administrative networks only, enforce strong password policies for all administrative accounts, and monitor administrative login activity for anomalies.

Patch guidance

Contact Intelbras support or visit their security advisory to obtain the specific patched firmware version for the iNVU 7016 FT. Verify the exact firmware currently deployed on your devices (typically found in device settings or system information). Plan the update during a maintenance window to minimize surveillance gaps. After patching, validate that recording and stream functionality remain operational, and audit administrative access logs to detect any prior unauthorized access attempts.

Detection guidance

Monitor web interface logs for repeated POST or GET requests to /RPC2_Loadfile/syslog/ endpoints, particularly those containing path traversal sequences (../, ..\ or URL-encoded variants like %2e%2e%2f). Alert on failed authentication attempts followed by high-privilege login, which may indicate credential compromise preceding exploitation. If available, inspect file access logs on affected NVRs for unauthorized reads from sensitive directories (e.g., /etc, /root, firmware configuration folders). Network IDS/IPS signatures targeting path traversal patterns on this endpoint may be available from Intelbras or third-party vendors.

Why prioritize this

Despite the low CVSS score, this vulnerability merits timely but non-emergency remediation. The published exploit code and network-accessible attack surface warrant action within a standard maintenance window (30–90 days), but the high privilege requirement means this is not a critical, immediate threat. Prioritize patching for iNVU systems that are internet-facing, support remote administration, or operate in multi-tenant or untrusted network environments. Systems isolated on internal networks and subject to physical access control may be deprioritized.

Risk score, explained

The CVSS v3.1 score of 2.7 (LOW) is justified by the convergence of moderate technical severity (path traversal, confidentiality impact) and high barrier to exploitation (administrator privilege required). The network attack vector (AV:N) and low attack complexity (AC:L) indicate ease of network delivery, but the high privilege requirement (PR:H) and lack of integrity or availability impact sharply constrain the overall risk. Organizations with robust access controls, credential hygiene, and network segmentation will find this threat substantially mitigated even without immediate patching.

Frequently asked questions