Comfast CF-N1-S firmware 2.6.0.1 and CF-WR630AX (2024-01-30 build), the update_interface_png SET handler in /usr/bin/webmgnt fails to sanitize the display_name parameter. User-controlled input is concatenated via sprintf() into the unquoted shell command `/etc/rrd/graphinterface %s %s` and executed by system() with root privileges. A remote authenticated attacker can inject arbitrary commands
History

Mon, 31 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Title Arbitrary Command Injection via Unvalidated display_name in Comfast Router Firmware

Mon, 31 Aug 2026 20:15:00 +0000

Type Values Removed Values Added
Title Remote Command Injection via Untrusted Input in Comfast CF‑N1‑S Firmware
Weaknesses CWE-20

Mon, 31 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 26 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
Title Remote Command Injection via Untrusted Input in Comfast CF‑N1‑S Firmware
Weaknesses CWE-20
CWE-78

Wed, 26 Aug 2026 21:00:00 +0000

Type Values Removed Values Added
Description Comfast CF-N1-S firmware 2.6.0.1 and CF-WR630AX (2024-01-30 build), the update_interface_png SET handler in /usr/bin/webmgnt fails to sanitize the display_name parameter. User-controlled input is concatenated via sprintf() into the unquoted shell command `/etc/rrd/graphinterface %s %s` and executed by system() with root privileges. A remote authenticated attacker can inject arbitrary commands
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-08-26T00:00:00.000Z

Updated: 2026-08-31T17:44:01.906Z

Reserved: 2026-08-17T00:00:00.000Z

Link: CVE-2026-75364

cve-icon Vulnrichment

Updated: 2026-08-31T17:43:49.361Z

cve-icon NVD

Status : Deferred

Published: 2026-08-26T21:16:40.970

Modified: 2026-08-31T20:59:32.817

Link: CVE-2026-75364

cve-icon Redhat

No data.