{"id":"CVE-2024-0840","aliases":["EUVD-2024-16623","GHSA-jg72-rmmw-hp49"],"status":"published","title":"Grandstream UCM Series IP PBX HTTP Parameter Injection","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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.0088,"percentile":0.59351,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-141"],"published":"2024-04-29T18:42:57Z","modified":"2026-06-17T06:54:24Z","products":[{"vendor":"grandstream","product":"ucm series"},{"vendor":"grandstream","product":"ucm6202_firmware"},{"vendor":"grandstream","product":"ucm6204_firmware"},{"vendor":"grandstream","product":"ucm6208_firmware"},{"vendor":"grandstream","product":"ucm6510_firmware"}],"references":[{"url":"https://vulncheck.com/advisories/grand-stream-param-injection","tags":["x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-0840"},{"url":"https://github.com/advisories/GHSA-jg72-rmmw-hp49"}],"sources":{"cve":[{"id":"CVE-2024-0840","title":"Grandstream UCM Series IP PBX HTTP Parameter Injection","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.\n","status":"published","published":"2024-04-29T18:42:57.112Z","modified":"2024-08-01T18:18:18.719Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-141"],"updated_at":"2026-11-02T14:34:22.852179Z"}],"euvd":[{"id":"EUVD-2024-16623","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.\n","status":"published","published":"2024-04-29T18:42:57Z","modified":"2024-08-01T18:18:18Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:50:41.523881Z"}],"ghsa":[{"id":"GHSA-jg72-rmmw-hp49","title":"The Grandstream UCM Series IP PBX before firmware version 1.0.20.52 is affected by a parameter...","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.\n","status":"published","published":"2024-04-29T21:30:34Z","modified":"2024-04-29T21:30:34Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-141"],"updated_at":"2026-11-02T14:57:15.605145Z"}],"nvd":[{"id":"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.\n","status":"published","published":"2024-04-29T19:15:19.73Z","modified":"2026-06-17T06:54:24.887Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-141"],"updated_at":"2026-11-02T14:09:55.124919Z"}]}}