CVE-2019-6989

TP-LINK TL-WR940N / TL-WR941ND - Buffer Overflow

Severity Score

8.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

TP-Link TL-WR940N is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the ipAddrDispose function. By sending specially crafted ICMP echo request packets, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges.

TP-Link TL-WR940N es vulnerable a un desbordamiento de búfer basado en la pila, causado por una verificación de límites inadecuada por la función ipAddrDispose. Al enviar paquetes de solicitud de eco ICMP especialmente diseñados, un atacante remoto identificado podría desbordar un búfer y ejecutar código arbitrario en el sistema con privilegios elevados.

TP-LINK models TL-WR940N and TL-WR941ND suffer from a buffer overflow vulnerability.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-28 CVE Reserved
2019-04-09 CVE Published
2023-09-30 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source
http://packetstormsecurity.com/files/152458/TP-LINK-TL-WR940N-TL-WR941ND-Buffer-Overflow.html	X_refsource_misc

URL	Date	SRC
https://www.exploit-db.com/exploits/46678	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Tp-link Search vendor "Tp-link"	Tl-wr940n Firmware Search vendor "Tp-link" for product "Tl-wr940n Firmware"	-	-	Affected	in	Tp-link Search vendor "Tp-link"	Tl-wr940n Search vendor "Tp-link" for product "Tl-wr940n"	-	-	Safe
Tp-link Search vendor "Tp-link"	Tl-wr941nd Firmware Search vendor "Tp-link" for product "Tl-wr941nd Firmware"	-	-	Affected	in	Tp-link Search vendor "Tp-link"	Tl-wr941nd Search vendor "Tp-link" for product "Tl-wr941nd"	-	-	Safe