CVE-2025-7921

ASKEY｜modem - Stack-based Buffer Overflow

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.

Remediation

Solution:

  • Update firmware to version R82XXR250718 or later

Category

9.3
CVSS
Severity: Critical
CVSS 4.0 •
CVSS 3.1 •
EPSS 0.16%
Third-Party Advisory org.tw Third-Party Advisory org.tw
Affected: ASKEY RTF8207w
Affected: ASKEY RTF8217
Published at:
Updated at:

References

Link Tags
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

Frequently Asked Questions

What is the severity of CVE-2025-7921?
CVE-2025-7921 has been scored as a critical severity vulnerability.
How to fix CVE-2025-7921?
To fix CVE-2025-7921: Update firmware to version R82XXR250718 or later
Is CVE-2025-7921 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-7921 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-7921?
CVE-2025-7921 affects ASKEY RTF8207w, ASKEY RTF8217.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.