CVE-2019-10662

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 43.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-03-30 · updated 2026-06-17
Weakness: CWE-78

Description

Grandstream UCM6204 before 1.0.19.20 devices allow remote authenticated users to execute arbitrary code via shell metacharacters in the backupUCMConfig file-backup parameter to the /cgi? URI.

Affected products

Grandstream Ucm6204 Firmware: before 1.0.19.20 — fixed in 1.0.19.20

How to fix

Upgrade to a fixed version: Grandstream Ucm6204 Firmware 1.0.19.20. Check the vendor advisory for mitigations.

References

https://github.com/scarvell/grandstream_exploits
https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1
https://github.com/scarvell/grandstream_exploits
https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=23920&dl=1

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