CVE-2021-27561: Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability
Critical · CVSS 9.8 (CVSS 3.1)KEV known exploitedEPSS 82.9%, 100th percentilePublished Updated Assigner: mitre
In CISA’s Known Exploited Vulnerabilities catalog: Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability.
Added , federal remediation due . Known ransomware use: Unknown.
Required action: Apply updates per vendor instructions.
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.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Yealink: Device Management
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- ssd-disclosure.com (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)