What is the CVSS score of CVE-2025-50667?

CVE-2025-50667 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-2025-50667?

D-Link DI-8003 routers running firmware 16.07.26A1 are vulnerable to unauthenticated remote denial of service attacks through the web management interface, potentially disrupting network connectivity…

How to fix or mitigate CVE-2025-50667?

Within 24 hours: Identify and document all D-Link DI-8003 devices in your network and verify firmware version (16.07.26A1); restrict administrative access to the router's web interface (port 80/443) to trusted IP ranges only via firewall rules. Within 7 days: Monitor D-Link security advisories for firmware patches and implement network segmentation to isolate router management traffic. Within 30 days: Apply vendor-released firmware patch immediately upon availability; conduct inventory verification to confirm all DI-8003 units are patched or mitigated.

D-Link CVE-2025-50667

EUVD-2025-209357 HIGH

Classic Buffer Overflow (CWE-120)

2026-04-08 mitre

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

EUVD ID Assigned

Apr 08, 2026 - 19:31 euvd

EUVD-2025-209357

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 handling of the iface parameter in the /wan_line_detection.asp endpoint.

AnalysisAI

Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote denial of service via malicious iface parameter to /wan_line_detection.asp endpoint. Attack requires no user interaction and exploits improper input validation in network-accessible web management interface. CVSS 7.5 (High) severity reflects availability impact; no public exploit identified at time of analysis. Low observed exploitation activity (EPSS 0.02%).

Technical ContextAI

Classic stack-based buffer overflow (CWE-120) in web server handling of iface parameter during WAN line detection processing. Improper bounds checking allows oversized input to corrupt memory, triggering service crash. CVSS vector AV:N/AC:L/PR:N confirms network-accessible, low-complexity attack requiring no privileges.

RemediationAI

No vendor-released patch identified at time of analysis. Consult D-Link security bulletin at https://www.dlink.com/en/security-bulletin/ for firmware updates. Immediate mitigations: restrict web management interface access to trusted networks via firewall rules, disable remote administration if not operationally required, implement IP allowlisting for administrative access. Monitor D-Link advisory page and NVD entry https://nvd.nist.gov/vuln/detail/CVE-2025-50667 for patch availability. Consider hardware replacement if device reaches end-of-life without security updates, as buffer overflows in network-facing services pose persistent availability risk.