CVE-2021-27561
Summary
| CVE | CVE-2021-27561 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-10-15 18:15:00 UTC |
| Updated | 2023-08-08 14:21:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.941060000 probability, percentile 0.999080000 (date 2026-04-02)
CISA KEV: Listed on 2021-11-03; due 2021-11-17; ransomware use Unknown
Problem Types: CWE-78
CISA Known Exploited Vulnerability
| Vendor | Yealink |
|---|---|
| Product | Device Management |
| Name | Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2021-27561 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Yealink | Device Management | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| SSD Advisory – Yealink DM Pre Auth 'root' level RCE - SSD Secure Disclosure | MISC | ssd-disclosure.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 731237 Yealink Device Management Multiple Vulnerabilities