Vulnerability · Published Jul 21, 2025 · Assigned by twcert
CVE-2025-7921ASKEY｜modem - Stack-based Buffer Overflow
Critical 9.8
In plain English
A critical-severity stack buffer overflow in RTF8207w from ASKEY. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.0%top 38.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-10268-1583b-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-10269-c9839-2.html third-party-advisory