High severity8.8NVD Advisory· Published Apr 29, 2024· Updated Apr 15, 2026
CVE-2024-0840
CVE-2024-0840
Description
The Grandstream UCM Series IP PBX before firmware version 1.0.20.52 is affected by a parameter injection vulnerability in the HTTP interface. A remote and authenticated attacker can execute arbitrary code by sending a crafted HTTP request. Authentication may be possible using a default user and password. Affected models are the UCM6202, UCM6204, UCM6208, and UCM6510.
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Affected products
1- Range: <1.0.20.52
Patches
Vulnerability mechanics
References
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