CVE-2021-43711
9.8
CRITICAL · CVSS 3.1 · EPSS 37.8% (pctl 99)
Patch early
EPSS 37.8% — above the 10% action threshold.
Description
The downloadFlile.cgi binary file in TOTOLINK EX200 V4.0.3c.7646_B20201211 has a command injection vulnerability when receiving GET parameters. The parameter name can be constructed for unauthenticated command execution.
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 | 37.84% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-77 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2022-01-04 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| totolink | ex200 |
| totolink | ex200 firmware |
References
→ the Explorer · watch your stack · NVD