CVE-2022-30521
9.8
CRITICAL · CVSS 3.1 · EPSS 15.1% (pctl 97)
Patch early
EPSS 15.1% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 15.12% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-06-02 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| dlink | dir-890l |
| dlink | dir-890l firmware |
References
- https://github.com/winmt/CVE/blob/main/DIR-890L/README.md
- https://github.com/winmt/my-vuls/tree/main/DIR-890L
- https://www.dlink.com/en/security-bulletin/
- https://github.com/winmt/CVE/blob/main/DIR-890L/README.md
- https://github.com/winmt/my-vuls/tree/main/DIR-890L
- https://www.dlink.com/en/security-bulletin/
→ the Explorer · watch your stack · NVD