CVE-2025-55583

State: Published
Severity: 9.8 Critical
Published: Aug 28, 2025
Updated: Aug 28, 2025
Reserved: Aug 13, 2025

Description

D-Link DIR-868L B1 router firmware version FW2.05WWB02 contains an unauthenticated OS command injection vulnerability in the fileaccess.cgi component. The endpoint /dws/api/UploadFile accepts a pre_api_arg parameter that is passed directly to system-level shell execution functions without sanitization or authentication. Remote attackers can exploit this to execute arbitrary commands as root via crafted HTTP requests.

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CWE-306 Missing Authentication for Critical Function
CWE-668 Exposure of Resource to Wrong Sphere

Affected Products

Product	Versions
n/an/a	n/aAffected

References

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