What is the CVSS score of CVE-2025-55583?

CVE-2025-55583 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 1.2%.

Which versions of Dir 868l Firmware are affected by CVE-2025-55583?

Organizations using D-Link DIR-868L B1 router firmware version FW2.05WWB02 face critical risk from CVE-2025-55583, a OS command injection vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-55583?

Yes, a public proof-of-concept exploit is available for CVE-2025-55583. Prioritise patching immediately. EPSS: 1.2%.

How to fix or mitigate CVE-2025-55583?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Validate that input sanitization is in place for all user-controlled parameters.

Dir 868l Firmware CVE-2025-55583

CRITICAL

OS Command Injection (CWE-78)

2025-08-28 cve@mitre.org

Command Injection D-Link Dir 868l Firmware

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 19:09 vuln.today

PoC Detected

Sep 09, 2025 - 18:41 vuln.today

Public exploit code

CVE Published

Aug 28, 2025 - 15:16 nvd

CRITICAL 9.8

DescriptionCVE.org

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.

AnalysisAI

D-Link DIR-868L B1 router firmware version FW2.05WWB02 contains an unauthenticated OS command injection vulnerability in the fileaccess.cgi component. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as OS Command Injection (CWE-78), which allows attackers to execute arbitrary operating system commands on the host. 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. Affected products include: Dlink Dir-868L Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Avoid passing user input to shell commands. Use language-specific APIs instead of shell execution. Apply strict input validation with allowlists.