Is CVE-2021-36380 actively exploited?

Yes. CVE-2021-36380 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2021-36380 be exploited remotely?

The attack vector of CVE-2021-36380 has not been classified yet.

What is the CVSS score of CVE-2021-36380?

CVE-2021-36380 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2021-36380

HIGHCISA KEVIN THE WILD

CVE-2021-36380

Published: March 5, 2024

EPSS:93.64%probability of exploitation in 30 daysPercentile:99.8th

Official 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.

NVD Source

CISA KEV Advisory

Sunhillo SureLine OS Command Injection Vulnerablity

Added to KEV: 2024-03-05Federal patch deadline: 2024-03-26

Required Action (CISA)

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

Risk Analysis

Sunhillo SureLine is vulnerable to an OS command injection flaw that allows an attacker to cause a denial-of-service or establish persistence on the network. This can be achieved by injecting shell metacharacters into IP or DNS address parameters. The high EPSS score of 0.93643 indicates a significant likelihood of exploitation, requiring immediate attention. This vulnerability is confirmed to be actively exploited, as it is in the KEV.

This vulnerability is actively being exploited in the wild. The flaw is remotely exploitable and can lead to denial-of-service or network persistence.

Recommended Action

Apply available security updates for Sunhillo SureLine. Implement strict input validation for network configuration parameters and consider network-level filtering for suspicious characters.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2021-36380 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2021-36380 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.