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CVE-2025-53711— TP-Link TL-WR841N, TL-WR842ND and TL-WR949N WlanNetworkRpm.htm buffer overflow

Quick assessment

Affected
TP-Link Systems INC. TL-WR841N v11
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是中国普联（TP-LINK）公司的一款无线路由器。 TP-LINK TL-WR841N V11版本存在安全漏洞，该漏洞源于/userRpm/WlanNetworkRpm.htm文件输入参数验证不足，可能导致缓冲区溢出和拒绝服务。

AI Predicted 7.5 Difficulty: Easy EPSS 0.31% · P23

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2025-53711

Vulnerability Information
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Vulnerability Title
TP-Link TL-WR841N, TL-WR842ND and TL-WR949N WlanNetworkRpm.htm buffer overflow
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability has been found in TP-Link TL-WR841N v11, TL-WR842ND v2 and TL-WR494N v3. The vulnerability exists in the /userRpm/WlanNetworkRpm.htm file due to missing input parameter validation, which may lead to the buffer overflow to cause a crash of the web service and result in a denial-of-service (DoS) condition. The attack may be launched remotely. This vulnerability only affects products that are no longer supported by the maintainer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
TP-LINK TL-WR841N 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TP-LINK TL-WR841N是中国普联（TP-LINK）公司的一款无线路由器。 TP-LINK TL-WR841N V11版本存在安全漏洞，该漏洞源于/userRpm/WlanNetworkRpm.htm文件输入参数验证不足，可能导致缓冲区溢出和拒绝服务。
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 v11 0 ~ 160325 -
TP Link Systems Inc. TL-WR842ND v2 0 ~ V2_150514 -
TP Link Systems Inc. TL-WR949N v3 0 ~ 3.18.1 Build 1711151 -

II. Public POCs for CVE-2025-53711

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III. Intelligence Information for CVE-2025-53711

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Same Patch Batch · TP-Link Systems INC. · 2025-07-29 · 5 CVEs total

CVE-2025-53714 TP-Link TL-WR841N WzdWlanSiteSurveyRpm_AP.htm buffer overflow
CVE-2025-53713 TP-Link TL-WR841N WlanNetworkRpm_APC.htm buffer overflow
CVE-2025-53715 TP-Link TL-WR841N Wan6to4TunnelCfgRpm.htm buffer overflow
CVE-2025-53712 TP-Link TL-WR841N WlanNetworkRpm_AP.htm buffer overflow

IV. Related Vulnerabilities

Same product: TL-WR841N v11
Same vendor: TP-Link Systems INC.
Same weakness: CWE-120

V. Comments for CVE-2025-53711

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