CVE-2023-36355

CRITICAL

TP-Link TL-WR940N V4 - Buffer Overflow

Title source: llm

Description

TP-Link TL-WR940N V4 was discovered to contain a buffer overflow via the ipStart parameter at /userRpm/WanDynamicIpV6CfgRpm. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted GET request.

Exploits (1)

exploitdb WORKING POC

by Amirhossein Bahramizadeh · pythondoshardware

https://www.exploit-db.com/exploits/51561

View Code ZIP pw:eip

References (2)

[Exploit, Third Party Advisory] https://github.com/a101e-IoTvul/iotvul/blob/main/tp-link/9/TP-Link%20TL-WR940N%20wireless%20router%20userRpmWanDynamicIpV6CfgRpm%20buffer%20write%20out-of-bounds%20vulnerability.md

[Exploit, Third Party Advisory] http://packetstormsecurity.com/files/173294/TP-Link-TL-WR940N-4-Buffer-Overflow.html

Scores

CVSS v3 9.9

EPSS 0.3434

EPSS Percentile 97.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Details

CWE

CWE-120

Status published

Products (1)

tp-link/tl-wr940n_firmware

Published Jun 22, 2023

Tracked Since Feb 18, 2026