Vulnerability · Published Jul 29, 2025 · Assigned by TPLink

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

Medium 6.9

In plain English

A medium-severity buffer overflow in TL-WR841N v11 from TP-Link Systems INC.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.4%top 69.7% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
TP-Link Systems INC.	TL-WR841N v11	0 – through 160325
TP Link Systems Inc.	TL-WR842ND v2	0 – through V2_150514
TP Link Systems Inc.	TL-WR949N v3	0 – through 3.18.1 Build 1711151

Weakness: CWE-120, CWE-119 · Vector: 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

References

https://www.tp-link.com/us/support/faq/4569/ vendor-advisory