EUVD-2025-209354
GHSA-28h4-g6r3-j269
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from Vendor (mitre) · only source for this CVE.
CVSS VectorVendor: mitre
Lifecycle Timeline
4DescriptionCVE.org
A buffer overflow vulnerability exists in D-Link DI-8003 16.07.26A1 due to improper handling of multiple parameters in the /web_post.asp endpoint. An attacker can exploit this vulnerability by sending a crafted HTTP GET request in parameters such as name, en, user_id, log, and time.
AnalysisAI
Buffer overflow in D-Link DI-8003 router firmware 16.07.26A1 enables unauthenticated remote attackers to trigger denial-of-service conditions via crafted HTTP GET requests to /web_post.asp endpoint. Vulnerable parameters include name, en, user_id, log, and time fields. Attack requires no user interaction and exploits improper input validation in web management interface. CVSS 7.5 (High) severity with network-accessible attack vector. No public exploit identified at time of analysis. Low observed exploitation activity (EPSS <1%).
Technical ContextAI
CWE-120 classic buffer overflow stems from inadequate boundary checks on user-supplied input to /web_post.asp GET parameters. Firmware version 16.07.26A1 fails to validate length constraints on name, en, user_id, log, time fields before copying to fixed-size memory buffers. Unauthenticated attack surface (PR:N) enables stack/heap corruption resulting in availability impact only per CVSS vector.
RemediationAI
No vendor-released patch identified at time of analysis. D-Link security bulletin portal at https://www.dlink.com/en/security-bulletin/ does not list specific remediation for CVE-2025-50666 or firmware 16.07.26A1. Recommended immediate actions: disable remote web management interface access if not operationally required; restrict /web_post.asp endpoint access via firewall ACLs to trusted administrative networks only; implement input length validation at network perimeter using WAF/IPS signatures targeting oversized GET parameters. Monitor D-Link security advisories for firmware updates addressing buffer overflow in web interface. Consider device replacement if vendor discontinues DI-8003 support lifecycle.
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Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today