CVE-2025-4731

TOTOLINK A3002R/A3002RU HTTP POST Request formPortFw buffer overflow

Severity Score

8.7

*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track*

*SSVC

Descriptions

A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

A vulnerability classified as critical has been found in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615. This affects an unknown part of the file /boafrm/formPortFw of the component HTTP POST Request Handler. The manipulation of the argument service_type/ip_subnet leads to buffer overflow. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.

Es wurde eine Schwachstelle in TOTOLINK A3002R and A3002RU 3.0.0-B20230809.1615 entdeckt. Sie wurde als kritisch eingestuft. Dabei betrifft es einen unbekannter Codeteil der Datei /boafrm/formPortFw der Komponente HTTP POST Request Handler. Durch Beeinflussen des Arguments service_type/ip_subnet mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

*Credits: BabyShark

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

System

Vulnerable | Subsequent

Confidentiality

High

None

Integrity

High

None

Availability

High

None

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:Track*

Exploitation

None

Automatable

Tech. Impact

Total

* Organization's Worst-case Scenario

Timeline

2025-05-15 CVE Reserved
2025-05-16 CVE Published
2025-05-16 CVE Updated
2025-05-16 First Exploit
2025-06-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

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

CAPEC

References (4)

URL	Tag	Source
https://vuldb.com/?id.309033	Technical Description
https://vuldb.com/?submit.570688	Third Party Advisory
https://www.totolink.net	Product

URL	Date	SRC
https://github.com/CH13hh/tmp_store_cc/blob/main/tt/ta/4.md	2025-05-16

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
Totolink Search vendor "Totolink"		A3002r Search vendor "Totolink" for product "A3002r"				*		-		Affected
Totolink Search vendor "Totolink"		A3002ru Search vendor "Totolink" for product "A3002ru"				*		-		Affected