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CVE-2025-9527— Linksys E1700 QoSSetup stack-based overflow

CVSS 8.8 · High EPSS 1.44% · P71

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-9527

Vulnerability Information
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Vulnerability Title
Linksys E1700 QoSSetup stack-based overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in Linksys E1700 1.0.0.4.003. This affects the function QoSSetup of the file /goform/QoSSetup. Performing manipulation of the argument ack_policy results in stack-based buffer overflow. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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
Linksys E1700 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linksys E1700是美国Linksys公司的一款无线路由器。 Linksys E1700 1.0.0.4.003版本存在安全漏洞，该漏洞源于对文件/goform/QoSSetup中参数ack_policy的错误操作导致栈缓冲区溢出。
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)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinksysE1700 1.0.0.4.003 -

II. Public POCs for CVE-2025-9527

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 7163 chars
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III. Intelligence Information for CVE-2025-9527

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Other References for CVE-2025-9527 (1)

Same Patch Batch · Linksys · 2025-08-27 · 4 CVEs total

CVE-2025-95268.8 HIGHLinksys E1700 setSysAdm stack-based overflow
CVE-2025-95258.8 HIGHLinksys E1700 setWan stack-based overflow
CVE-2025-95284.7 MEDIUMLinksys E1700 systemCommand os command injection

IV. Related Vulnerabilities

Same product: E1700
Same vendor: Linksys
Same weakness: CWE-121

V. Comments for CVE-2025-9527

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