V4.02.r11 H.264 H.265 Dvr Nvr Firmware Extra Quality Download Jun 2026
Several known vulnerabilities have been identified in this firmware version. If your device is running an older version, it is crucial to update immediately.
If you want, I can create a concise pre-upgrade checklist printable for technicians or a short step-by-step upgrade script tailored to a specific device model—provide the model number and current firmware.
What is the shown in your system version menu? V4.02.R11 H.264/H.265 DVR/NVR Firmware Download
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Plug the USB flash drive into an open USB port on your DVR or NVR. V4.02.r11 H.264 H.265 Dvr Nvr Firmware Download
: Look for a string like V4.02.R11.00031095.12001 . The 8 middle digits (e.g., 00031095 ) are your unique hardware identifier.
The firmware is intended for a wide range of generic or white-label DVRs and NVRs based on compatible Hisilicon chips. The list below provides a clearer picture of compatible devices and their features.
The most crucial step in downloading the correct V4.02.R11 firmware is verifying the exact suffix of your version number. The "R11" is just the base. The real identifier is the string of numbers following it (e.g., .00002531.1 or .C7431119.12001 ).
By updating your DVR or NVR device with the V4.02.r11 firmware, you can ensure optimal performance, stability, and security for your video surveillance system. Several known vulnerabilities have been identified in this
: If prompted for admin credentials, common defaults for these systems include (username) with a password of , or leaving it blank. Do not power off
If your recorder is currently running an older V4.01 or early V4.02 revision, upgrading to the stable patch offers distinct advantages: 1. Enhanced Cyber Security
: Provides a breakdown of version R11 for both DVRs and NVRs.
Perform the firmware update to a newer patch if available. If Xiongmaitech no longer supports your specific V4.02.R11 variant (common for 2016-2018 models), isolate the DVR on a Virtual Local Area Network (VLAN) and firewall it from direct internet access, forcing it to use only outbound peer-to-peer (P2P) connections. What is the shown in your system version menu
This technical guide details how to decode your system parameters, avoid system bricks, resolve underlying security issues, and safely deploy the software update. 1. Identify Your Specific Device Hardware ID
Ensure the file download is a compressed archive (.zip or .rar) that unpacks into a single binary update file, usually ending in a .bin extension. How to Install the Firmware Update
| CVE ID | Description | Base Score | Official Recommendation | | :--- | :--- | :--- | :--- | | | Unauthenticated attackers can crash the web server or execute arbitrary code via a specially crafted HTTP request. | 9.8 (CRITICAL) | Update to a patched firmware version immediately. | | CVE-2021-41506 | A backdoor exists due to static root account credentials hardcoded into the firmware. | 9.8 (CRITICAL) | Isolate the device on a secure VLAN and update firmware. | | CVE-2020-22253 | Port 9530 is left open, allowing unauthenticated attackers to make arbitrary Telnet connections. | 9.8 (CRITICAL) | Block port 9530 on your network firewall. |
: Aggregated lists on CCTVSP Russia's XM Registry or technical overviews on Unifore Surveillance Systems map older board configurations to newer legacy replacements. For instance, firmware for platform 118 natively replaces older platform 095 configurations, unlocking newer software optimizations. 3. Step-by-Step Installation Instructions