CVE-2022-30521 : faille critique dlink dir-890l firmware (CVSS 9.8)

The LAN-side Web-Configuration Interface has Stack-based Buffer Overflow vulnerability in the D-Link Wi-Fi router firmware DIR-890L DIR890LA1_FW107b09.bin and previous versions. The function created at 0x17958 of /htdocs/cgibin will call sprintf without checking the length of strings in parameters given by HTTP header and can be controlled by users easily. The attackers can exploit the vulnerability to carry out arbitrary code by means of sending a specially constructed payload to port 49152.

Sévérité

Critique (CVSS 9.8)

Vecteur CVSS

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

Exploitation active

Non signalée par la CISA

Publication

2 juin 2022

Dernière mise à jour

17 juin 2026

• dlink dir-890l firmware

• Fiche CVE-2022-30521 sur le NVD (NIST)
• github.com/winmt/CVE/blob/main/DIR-890L/README.md
• github.com/winmt/my-vuls/tree/main/DIR-890L
• dlink.com/en/security-bulletin/