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CVE-2021-36380Sunhillo SureLine OS Command Injection Vulnerablity

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

9.8 CRITICALEPSS 97.83%⚡ Known Exploited (CISA KEV)NVD: Analyzed

Last updated: 2026-06-17 03:58 UTC

OverviewCVSS details

9.8CRITICALCVSS 3.1

Score source: NVD
NVD status: Analyzed
Published: Aug 13, 2021
Assigner: mitre

Affected

sureline (sunhillo)

Versions: before 8.7.0.1.1
Fixed in: 8.7.0.1.1

Exploitation

Public exploit: Yes · 1 reference
CISA KEV: Listed · Mar 5, 2024
KEV due date: Mar 26, 2024
Ransomware use: Unknown
SSVC: Exploitation active · Automatable yes · Impact total

EPSS · FIRST, scored Nov 7

97.83%chance of exploitation in 30 days

Higher than 99.90% of CVEs

CVSS 3.1 · NVD

9.8Critical

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

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

CVSS 2.0 · NVD

10.0High

AV:N/AC:L/Au:N/C:C/I:C/A:C

Attack vector: Network
Attack complexity: Low
Authentication: None
Confidentiality impact: Complete
Integrity impact: Complete
Availability impact: Complete

NVD status: Analyzed

Overview Affected Products References

Overview

Severity

Score	Severity	Version	Vector String
9.8	CRITICAL	3.1NVD	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0	HIGH	2.0NVD	AV:N/AC:L/Au:N/C:C/I:C/A:C

CISA required action

⚡ Known exploited · remediation due Mar 26, 2024

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

Details

CVE ID: CVE-2021-36380
Status: Analyzed
Assigner (CNA): mitre
Published: Aug 13, 2021
Last modified: 2026-06-17 03:58 UTC
Weaknesses: CWE-78

Sources

Refreshed hourly from the sources above. Last fetched 2026-11-08 13:35 UTC.