CVE-2025-53713Network attack vector

HTTP-service crash via unchecked input parameter

Published Jul 29, 2025 · Updated Jul 29, 2025

Buffer overflow in TP-Link TL-WR841N V11 firmware 0 through 160325 allows remote authenticated users to crash the HTTP service. The /userRpm/WlanNetworkRpm_APC.htm handler processes an input parameter without validating its size, allowing it to overflow the web service's buffer. A privileged management session is required, and the resulting outage lasts until the router reboots.

CVSS severity7.5
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in TP-Link TL-WR841N V11 firmware 0 through 160325 allows remote authenticated users to crash the HTTP service. The /userRpm/WlanNetworkRpm_APC.htm handler processes an input parameter without validating its size, allowing it to overflow the web service's buffer. A privileged management session is required, and the resulting outage lasts until the router reboots.

The record

CVE
CVE-2025-53713
Published
Jul 29, 2025
Updated
Jul 29, 2025
Vendor
TP-Link Systems Inc.
Product
TL-WR841N
Classifications
CWE-120, CWE-119, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jul 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=160325

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

TP-Link Systems Inc. · TL-WR841Nversion=0 <=160325

Published CVSS scores

6.9TP-Link Systems Inc.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
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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