CVE-2020-5722
Critical CVSS 9.8 Known exploitedPublished 2020-03-23 · last changed 2026-06-17 · added to CISA KEV 2022-01-28
The fix
We hold no Microsoft remediation data for CVE-2020-5722, which normally means it is not a Windows CVE. For non-Microsoft software the fix is the vendor's own updated release, and the affected versions are listed below.
What it is
The HTTP interface of the Grandstream UCM6200 series is vulnerable to an unauthenticated remote SQL injection via crafted HTTP request. An attacker can use this vulnerability to execute shell commands as root on versions before 1.0.19.20 or inject HTML in password recovery emails in versions before 1.0.20.17.
Sources
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H