CVE-2021-27561

Known Exploited

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.18% Top 5%
KEV Since 
Third-Party Advisory ssd-disclosure.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://ssd-disclosure.com/?p=4688 third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-27561?
CVE-2021-27561 has been scored as a critical severity vulnerability.
How to fix CVE-2021-27561?
To fix CVE-2021-27561, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-27561 being actively exploited in the wild?
It is confirmed that CVE-2021-27561 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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