CVE-2023-7227: 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)…

PriorityP268critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

1.28%

66.4th percentile

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.

Affected

6 ranges

Vendor	Product	Version range	Fixed in
systemk-corp	nvr_504_firmware	—	—
systemk-corp	nvr_508_firmware	—	—
systemk-corp	nvr_516_firmware	—	—
systemk	nvr_504	—	—
systemk	nvr_508	—	—
systemk	nvr_516	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Command injection vulnerability is located in the DDNS (Dynamic Domain Name System) settings of the SystemK NVR web interface — focus network/web traffic monitoring and input validation on DDNS configuration endpoints ↗
→A public Proof of Concept (PoC) exists for this vulnerability, authored by Keniver Wang — monitor threat intel feeds and public repositories for PoC payloads targeting SystemK NVR DDNS settings ↗

·SystemK has not engaged with CISA to produce a patch — no vendor-supplied fix is available; network isolation is the primary recommended mitigation ↗

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