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CVE Watch—

CVE-2021-27561

Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability

CVSS

—

No CVSS

EPSS

82.9%

p100

KEV

YES

Nov 3, 2021

Exploit Today

80

0-100

Published: — · Last modified: —

EPSS · 30d
82.5%EPSS · 30 days82.9%
2026-08-022026-08-31
KEV catalog record

Product

Yealink / Device Management

Vulnerability

Yealink Device Management Server-Side Request Forgery (SSRF) Vulnerability

Added to KEV

Nov 3, 2021

Remediate by

Nov 17, 2021

Known ransomware use

No

Summary description

Yealink Device Management contains a server-side request forgery (SSRF) vulnerability that allows for unauthenticated remote code execution.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2021-27561

Related CVEs

No related CVEs by CWE or product.