CVE-2022-30521

moderate-risk
Published 2022-06-02

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.

Do I need to act?

~
1.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Dlink

References (6)

Exploit https://github.com/winmt/CVE/blob/main/DIR-890L/README.md
https://github.com/winmt/my-vuls/tree/main/DIR-890L
Vendor Advisory https://www.dlink.com/en/security-bulletin/
Exploit https://github.com/winmt/CVE/blob/main/DIR-890L/README.md
https://github.com/winmt/my-vuls/tree/main/DIR-890L
Vendor Advisory https://www.dlink.com/en/security-bulletin/
42
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 5/34 · Minimal
Exposure 5/34 · Minimal