CVE-2021-33268
9.8
CRITICAL · CVSS 3.1 · EPSS 4.1% (pctl 90)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function sub_8003183C in /fromLogin. This vulnerability is triggered via a crafted POST request.
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 | 4.07% — more likely to be exploited than 90% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-12-01 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| dlink | dir-809 |
| dlink | dir-809 firmware |
References
→ the Explorer · watch your stack · NVD