VulnerabilityDeferred

CVE-2026-75364

User-controlled input is concatenated via sprintf() into the unquoted shell command `/etc/rrd/graphinterface %s %s` and executed by system() with root privileges.

MEDIUM 6.8EPSS 0.24%

Does this matter?

Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.

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

CVSS 3.1: 6.8 MEDIUMCVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.24% probability · 16th percentile
CISA KEV: Not listed
Weakness: CWE-78
Source: cve@mitre.org

References

https://github.com/Flechao1/iot-vuln/tree/main/cve-pocs/CVE-2026-75364

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.