CISA-confirmed known exploited vulnerability

CVE-2021-36380

Sunhillo SureLine OS Command Injection Vulnerablity

Sunhillo · SureLine

Vulnerability details

Sunhillo SureLine contains an OS command injection vulnerability that allows an attacker to cause a denial-of-service or utilize the device for persistence on the network via shell metacharacters in ipAddr or dnsAddr in /cgi/networkDiag.cgi.

Added to CISA KEV: 2024-03-05

Ransomware campaign use: Unknown

CISA due date: 2024-03-26

Defensive guidance from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

This is the source's required-action field, not an independently validated patch procedure. Refer to the vendor for exact affected versions and fixes.

Source catalog date: 2026-11-06T19:44:45.1797Z · Last retrieved: 2026-11-06 21:02:26 UTC

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