How to fix CVE-2025-50668?

Within 24 hours: Identify all D-Link DI-8003 devices in your network and verify firmware version (16.07.26A1 is affected); document device inventory and network segments they protect. Within 7 days: Contact D-Link support for firmware updates or workarounds; if updates are unavailable, implement network segmentation to restrict access to the /web_list_opt.asp endpoint and disable remote management features if not operationally required. Within 30 days: Deploy updated firmware as released by D-Link; if no patch materializes, evaluate replacement with alternative routing equipment and complete migration plan.

Is D-Link affected by CVE-2025-50668?

CVE-2025-50668 is a high-severity denial-of-service vulnerability in D-Link DI-8003 routers (firmware 16.07.26A1) that allows unauthenticated remote attackers to crash affected devices through network requests, potentially disrupting organizational network connectivity and access to…

CVE-2025-50668

EUVD-2025-209358 HIGH

2026-04-08 mitre

GHSA-9rcc-8r82-33hr

7.5

CVSS 3.1

CVSS Vector

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

Analysis Generated

Apr 08, 2026 - 19:31 vuln.today

EUVD ID Assigned

Apr 08, 2026 - 19:31 euvd

EUVD-2025-209358

CVE Published

Apr 08, 2026 - 00:00 nvd

HIGH 7.5

Description

A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of the s parameter in the /web_list_opt.asp endpoint.

Analysis

Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote attackers to trigger denial-of-service conditions through malformed 's' parameter input to the /web_list_opt.asp endpoint. The vulnerability requires no user interaction and is exploitable over the network with low attack complexity. CVSS 7.5 (High) reflects network-accessible DoS impact. No public exploit identified at time of analysis; low observed exploitation activity (EPSS <1%).

Technical Context

CWE-120 stack-based buffer overflow in web management interface parameter parsing. Insufficient bounds checking on user-supplied 's' parameter allows memory corruption leading to service crash. CVSS vector PR:N confirms unauthenticated attack surface. Network-accessible administrative endpoint lacks input validation, typical of embedded device firmware vulnerabilities targeting legacy routing hardware.

Affected Products

D-Link DI-8003 router, firmware version 16.07.26A1. Vendor: D-Link Corporation. Specific CPE data not provided in authoritative sources.

Remediation

No vendor-released patch identified at time of analysis. Consult D-Link Security Bulletin at https://www.dlink.com/en/security-bulletin/ for updates specific to DI-8003 model. Immediate mitigations: disable remote administrative access to /web_list_opt.asp endpoint; restrict management interface access to trusted internal networks only via firewall rules; deploy network segmentation isolating device from untrusted networks. Monitor vendor communications for firmware release addressing CVE-2025-50668. If device reaches end-of-life without patch, consider hardware replacement with actively supported models.

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +0.0

CVSS: +38

POC: 0

CVE-2025-50668 vulnerability details – vuln.today

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CVE-2025-50668

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CVE-2025-50668

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Lifecycle Timeline

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