What is the CVSS score of EUVD-2025-209331?

EUVD-2025-209331 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 EUVD-2025-209331?

CVE-2025-50649 affects D-Link DI-8003 routers running firmware 16.07.26A1, allowing unauthenticated remote attackers to crash the device through a buffer overflow in the VLAN configuration interface.

How to fix or mitigate EUVD-2025-209331?

Within 24 hours: Identify all D-Link DI-8003 devices running firmware version 16.07.26A1 in your environment and document their network location and criticality. Within 7 days: Restrict network access to the /shut_set.asp endpoint through firewall rules or WAF policies, limiting administrative access to trusted IP ranges only. Within 30 days: Contact D-Link for available firmware updates or replacement timelines; evaluate alternative routing solutions if no patch becomes available. Implement continuous network monitoring for unusual vlan_name parameter submissions to affected devices.

D-Link EUVD-2025-209331

| CVE-2025-50649 HIGH

Classic Buffer Overflow (CWE-120)

2026-04-08 mitre

GHSA-9pgj-j82m-2hvc

D-Link Buffer Overflow

7.5

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.5 HIGH

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

Primary rating from NVD · only source for this CVE.

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

Re-analysis Queued

Apr 22, 2026 - 16:22 vuln.today

cvss_changed

EUVD ID Assigned

Apr 08, 2026 - 19:31 euvd

EUVD-2025-209331

Analysis Generated

Apr 08, 2026 - 19:31 vuln.today

CVE Published

Apr 08, 2026 - 00:00 nvd

HIGH 7.5

DescriptionCVE.org

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper input validation in the vlan_name parameter in the /shut_set.asp endpoint.

AnalysisAI

Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote attackers to trigger denial-of-service conditions through malformed vlan_name parameter submitted to /shut_set.asp endpoint. Improper input validation in VLAN configuration interface permits memory corruption leading to system availability disruption. CVSS 7.5 reflects network-accessible attack requiring no user interaction or credentials. No public exploit identified at time of analysis; low observed exploitation activity (EPSS 0.02%).

Technical ContextAI

CWE-120 stack-based buffer overflow in VLAN naming function within DI-8003 embedded web server. Lack of boundary checking on vlan_name string parameter enables memory overwrite during configuration processing. Attack vector AV:N/PR:N indicates remotely exploitable without authentication through HTTP interface.

RemediationAI

No vendor-released patch identified at time of analysis per D-Link Security Bulletin archives (https://www.dlink.com/en/security-bulletin/). Monitor vendor advisory page for firmware updates addressing buffer overflow in VLAN configuration handler. Until patch availability confirmed, implement compensating controls: restrict administrative interface access to trusted management networks only via firewall rules, disable remote administration if not operationally required, apply principle of least privilege to network device access. For production environments requiring VLAN configuration, validate input length client-side and monitor device logs for crash patterns indicating exploitation attempts. Consider device replacement if vendor discontinues support for DI-8003 product line.