ACTIVELY EXPLOITED
CVE-2021-35395: Realtek AP-Router SDK Buffer Overflow Vulnerability
| Vendor | Realtek |
|---|---|
| Product | AP-Router SDK |
| Actively exploited | Yes |
| Added to CISA KEV | 3 Nov 2021 |
| CISA federal deadline | 17 Nov 2021 |
| Weakness (CWE) | CWE-122, CWE-20 |
Required action (CISA's text)
Apply updates per vendor instructions.
Description (NVD)
Realtek AP-Router SDK HTTP web server boa contains a buffer overflow vulnerability due to unsafe copies of some overly long parameters submitted in the form that lead to denial-of-service (DoS).
SOURCES
Other Realtek flaws
- CVE-2014-8361: Realtek SDK Improper Input Validation Vulnerability
- CVE-2021-35394: Realtek Jungle SDK Remote Code Execution Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.