critical9.8Known exploited
CVE-2021-27561
Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2021-11-03. Federal due date: 2021-11-17.
Apply updates per vendor instructions.
Impact
Yealink Device Management (DM) 3.6.0.20 allows command injection as root via the /sm/api/v1/firewall/zone/services URI, without authentication.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Yealink | Device Management | through 3.6.0.20 |