Critical severity9.8NVD Advisory· Published Jun 2, 2022· Updated Jun 17, 2026
CVE-2022-30521
CVE-2022-30521
Description
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.
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Affected products
2Patches
Vulnerability mechanics
References
3- github.com/winmt/CVE/blob/main/DIR-890L/README.mdnvdExploitThird Party Advisory
- www.dlink.com/en/security-bulletin/nvdVendor Advisory
- github.com/winmt/my-vuls/tree/main/DIR-890Lnvd
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