What is the CVSS score of CVE-2025-50671?

CVE-2025-50671 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. EPSS exploitation probability: 0.0%.

Which versions of D-Link are affected by CVE-2025-50671?

CVE-2025-50671 is a high-severity buffer overflow affecting D-Link DI-8003 routers (firmware 16.07.26A1) that allows unauthenticated attackers to remotely crash the device via malformed HTTP requests…

How to fix or mitigate CVE-2025-50671?

Within 24 hours: Identify all D-Link DI-8003 devices running firmware 16.07.26A1 in your network inventory and verify current firmware versions. Within 7 days: Check D-Link security advisories for firmware updates beyond 16.07.26A1; if available, stage and test updates in a non-production environment. Within 30 days: Implement network segmentation to restrict direct internet access to router management interfaces, disable remote management if operationally feasible, and deploy WAF or IDS rules to block oversized HTTP requests to /xwgl_ref.asp endpoint.

D-Link CVE-2025-50671

EUVD-2025-209361 HIGH

Stack-based Buffer Overflow (CWE-121)

2026-04-08 mitre

GHSA-95hh-fj32-cpj5

Buffer Overflow D-Link Stack Overflow

7.5

CVSS 3.1

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Lifecycle Timeline

EUVD ID Assigned

Apr 08, 2026 - 19:31 euvd

EUVD-2025-209361

Analysis Generated

Apr 08, 2026 - 19:31 vuln.today

CVE Published

Apr 08, 2026 - 00:00 nvd

HIGH 7.5

DescriptionNVD

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of parameters in the /xwgl_ref.asp endpoint. An attacker can exploit this vulnerability by sending a crafted HTTP GET request with excessively long strings in parameters name, en, user_id, shibie_name, time, act, log, and rpri.

AnalysisAI

Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote denial of service through the /xwgl_ref.asp endpoint. Attackers exploit improper input validation by sending HTTP GET requests with excessively long strings in eight parameters (name, en, user_id, shibie_name, time, act, log, rpri), causing stack buffer overflow and device crash. Low observed exploitation activity (EPSS <1%). No public exploit identified at time of analysis. Affects network-accessible management interface without authentication requirements.

Technical ContextAI

Stack-based buffer overflow (CWE-121) occurs in /xwgl_ref.asp web management handler due to missing bounds validation on eight HTTP GET parameters. Firmware fails to limit input length before copying data to fixed-size stack buffers, enabling memory corruption and denial of service via remotely crafted requests (CVSS AV:N/AC:L/PR:N).

RemediationAI

No vendor-released patch identified at time of analysis. D-Link security bulletin (https://www.dlink.com/en/security-bulletin/) does not list remediation for CVE-2025-50671 as of current review. Recommended immediate actions: disable remote management access to /xwgl_ref.asp endpoint via firewall rules; restrict administrative interface access to trusted internal networks only; monitor D-Link security bulletin for firmware updates addressing this vulnerability. Consider hardware replacement if D-Link confirms end-of-life status for DI-8003 model without security patches. Implement network segmentation to isolate affected devices from untrusted networks until permanent fix becomes available.