CyberRota Analysis
This is a critical severity vulnerability with a CVSS score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities catalog, indicating confirmed active exploitation in the wild. Its EPSS score suggests a 82.5% probability of exploitation in the next 30 days.
CISA KEV Details
Status: This CVE is listed in CISA's Known Exploited Vulnerabilities catalog.
Ransomware use: Unknown
Added to KEV: 2021-11-03
Required action: Apply updates per vendor instructions.
CVE
CVE-2021-27561
Severity
CRITICAL
CVSS
9.8
EPSS
82.52%
Original NVD Description
Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.
Related CVEs
Other vulnerabilities affecting the same vendor(s)