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CVE-2026-9105— Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface

Quick assessment

Affected
TP-Link Systems Inc. TL-WR841N v14
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.

TP-Link TL-WR841N v14是中国TP-Link公司的一款无线路由器。 TP-Link TL-WR841N v14版本存在缓冲区错误漏洞，该漏洞源于Web管理界面中存在栈缓冲区溢出，可能导致远程认证攻击者通过发送特制HTTP请求使嵌入式Web服务器溢出栈缓冲区，导致进程崩溃，成功利用可造成拒绝服务，使设备崩溃并自动重启。

AI Predicted 5.3 Difficulty: Easy EPSS 1.12% · P65

Affected Version Matrix 1

VendorProduct Version RangeStatus
TP-Link Systems Inc. TL-WR841N v14 < V14_260518 affected
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I. Basic Information for CVE-2026-9105

Vulnerability Information
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Vulnerability Title
Authenticated Stack-Based Buffer Overflow in TP-Link TL-WR841N Web Interface
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated stack-based buffer overflow vulnerability exists in the web management interface of TP-Link TL-WR841N v14. A remote authenticated attacker can send crafted HTTP requests to cause the embedded web server to overflow a stack buffer, resulting in a crash of the affected process. Successful exploitation results in a denial-of-service condition, causing the device to crash and automatically reboot.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
TP-Link TL-WR841N v14 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-Link TL-WR841N v14是中国TP-Link公司的一款无线路由器。 TP-Link TL-WR841N v14版本存在缓冲区错误漏洞，该漏洞源于Web管理界面中存在栈缓冲区溢出，可能导致远程认证攻击者通过发送特制HTTP请求使嵌入式Web服务器溢出栈缓冲区，导致进程崩溃，成功利用可造成拒绝服务，使设备崩溃并自动重启。
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

Vendor Product Affected Versions CPE Subscribe
TP-Link Systems Inc. TL-WR841N v14 0 ~ V14_260518 -

II. Public POCs for CVE-2026-9105

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III. Intelligence Information for CVE-2026-9105

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Vendor Advisories for CVE-2026-9105 (1)

Vendor Pages for CVE-2026-9105 (2)

IV. Related Vulnerabilities

Same product: TL-WR841N v14
Same vendor: TP-Link Systems Inc.
Same weakness: CWE-121

V. Comments for CVE-2026-9105

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