CVE-2025-7921: Askey RTF8207W

Critical severity, CVSS 9.8. EPSS: 0.8% chance of exploitation in the next 30 days.

Certain modem models developed by Askey has a Stack-based Buffer Overflow vulnerability, allowing unauthenticated remote attackers to control the program's execution flow and potentially execute arbitrary code.

Affected products

• Askey RTF8207W: before R82XXR250718 (fixed in R82XXR250718)
• Askey RTF8217: before R82XXR250718 (fixed in R82XXR250718)

Published 2025-07-21. Last modified 2026-06-17.