How severe is CVE-2021-36380?

CVE-2021-36380 has a CVSS 3.1 base score of 9.8 (CRITICAL). EPSS estimates a 97.6% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2021-36380: Sunhillo SureLine OS Command Injection

CISA Known Exploited Vulnerabilities

Sunhillo SureLine OS Command Injection Vulnerablity is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2024-03-05

Remediation due

2024-03-26

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

CISA notes
https://www.sunhillo.com/fb011/; https://nvd.nist.gov/vuln/detail/CVE-2021-36380

Description

Sunhillo SureLine before 8.7.0.1.1 allows Unauthenticated OS Command Injection via shell metacharacters in ipAddr or dnsAddr /cgi/networkDiag.cgi.

Severity

CVSS 3.1 · CISA9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableyes

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

2 Links

Other references

Record Details

Published

2021-08-13

Last updated

2025-10-21

Assigner (CNA)

mitre

Credited to

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.