# CVE-2021-27561: A Yealink Device Management bug is being used in attacks

Status: Being used now (CISA KEV, added 2021-11-03)
Who: 
Do this: 

## Agent prompt (read-only)
Read-only check, change nothing, send nothing anywhere.
Is Yealink Device Management (CVE-2021-27561) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2021-27561. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.

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

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

Generated by isitexploited.org from public sources. Verify version numbers against the vendor before acting.