CVE-2021-36380
Sunhillo SureLine OS Command Injection Vulnerablity
Sunhillo SureLine
CVSS
9.8CriticalExploit odds (EPSS)97.8%Chance of exploitation activity in the next 30 days, higher than 99.9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. CISA KEV
What fixes it
No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.
Timeline
Public exploit code and templates 1
- Scanner templateSunhillo SureLine <8.7.0.1.1 - Unauthenticated OS Command InjectionNuclei
Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.
Description
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.
Text from CVE List
Affected versions 1
- n/aaffected: n/aCVE List
References 5
- research.nccgroup.com/2021/07/26/technical-advisory-sunhillo-sureline-unauthenticated-os-command-injection-cve-2021-36380/Advisoryvia CVE List
- sunhillo.com/fb011/Referencevia CISA KEV
- nvd.nist.gov/vuln/detail/CVE-2021-36380Referencevia CISA KEV
- sunhillo.com/product/sureline/Referencevia CVE List
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36380Referencevia CVE List