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CVE-2025-7921— ASKEY｜modem - Stack-based Buffer Overflow

Quick assessment

Affected
ASKEY RTF8207w
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Askey RTF8207w和Askey RTF8217都是中国台湾亚旭（Askey）公司的一款光纤GPON家用网关。 Askey RTF8207w和Askey RTF8217存在安全漏洞，该漏洞源于基于栈的缓冲区溢出问题，可能导致远程攻击者控制程序执行流程。

CVSS 9.8 · Critical EPSS 0.82% · P56
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I. Basic Information for CVE-2025-7921

Vulnerability Information
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Vulnerability Title
ASKEY｜modem - Stack-based Buffer Overflow
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Askey RTF8207w和Askey RTF8217 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Askey RTF8207w和Askey RTF8217都是中国台湾亚旭（Askey）公司的一款光纤GPON家用网关。 Askey RTF8207w和Askey RTF8217存在安全漏洞，该漏洞源于基于栈的缓冲区溢出问题，可能导致远程攻击者控制程序执行流程。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Shenlong Deep Dive — AI Deep Analysis

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Affected Products

Vendor Product Affected Versions CPE Subscribe
ASKEY RTF8207w 0 ~ R82XXR250718 -
ASKEY RTF8217 0 ~ R82XXR250718 -

II. Public POCs for CVE-2025-7921

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III. Intelligence Information for CVE-2025-7921

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IV. Related Vulnerabilities

Same vendor: ASKEY
Same weakness: CWE-121

V. Comments for CVE-2025-7921

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