CVE-2021-38408
9.8
CRITICAL · CVSS 3.1 · EPSS 11.6% (pctl 96)
Patch early
EPSS 11.6% — above the 10% action threshold.
Description
A stack-based buffer overflow vulnerability in Advantech WebAccess Versions 9.02 and prior caused by a lack of proper validation of the length of user-supplied data may allow remote code 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 | 11.57% — more likely to be exploited than 96% of all CVEs |
| Weakness | CWE-121 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2021-09-09 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| advantech | webaccess |
References
→ the Explorer · watch your stack · NVD