CVE-2021-36380
Sunhillo SureLine OS Command Injection Vulnerablity
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 26 March 2024). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
Sunhillo SureLine before 8.7.0.1.1 allows Unauthenticated OS Command Injection via shell metacharacters in ipAddr or dnsAddr /cgi/networkDiag.cgi.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 97.83% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 5 March 2024 · due 26 March 2024
- Weakness
- CWE-78
- Affected
- sunhillo/sureline
- Source
- cve@mitre.org
EPSS 97.8% since 30 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.sunhillo.com/fb011/; https://nvd.nist.gov/vuln/detail/CVE-2021-36380
References
- https://research.nccgroup.com/2021/07/26/technical-advisory-sunhillo-sureline-unauthenticated-os-command-injection-cve-2021-36380/Exploit, Third Party Advisory
- https://www.sunhillo.com/product/sureline/Product
- https://research.nccgroup.com/2021/07/26/technical-advisory-sunhillo-sureline-unauthenticated-os-command-injection-cve-2021-36380/Exploit, Third Party Advisory
- https://www.sunhillo.com/product/sureline/Product
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-36380US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.