CVE-2023-7227
CWE-77Published: January 25, 2024· Updated: Jun 17, 2026
Official Description
SystemK NVR 504/508/516 versions 2.3.5SK.30084998 and prior are vulnerable to a command injection vulnerability in the dynamic domain name system (DDNS) settings that could allow an attacker to execute arbitrary commands with root privileges.
Risk Analysis
SystemK NVR devices are vulnerable to command injection in the DDNS settings, which can allow an attacker to execute commands with root privileges. The CVSS score of 9.8 highlights the severity of this remote access flaw.
There is no public exploit known, and the vulnerability is not in KEV. It is remotely exploitable.
Users should update the firmware of the affected NVR models to the latest version provided by SystemK.
Technical Analysis
CVE-2023-7227 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-77)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-7227 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts